| Scientific Name | Authority | Status |
|---|---|---|
| Oncidium | Sw. | accepted |
| Oncidium caminiophorum | Rchb.f. | accepted |
| Oncidium dactylopterum | Rchb.f. | accepted |
| Oncidium cardioglossum | (Pupulin) M.W.Chase & N.H.Williams | accepted |
| Oncidium naevium | (Lindl.) Beer | accepted |
| Oncidium bennettii | Christenson | accepted |
| Oncidium constrictum | (Lindl.) Beer | accepted |
| Oncidium decorum | Königer | accepted |
| Oncidium dichromaticum | Rchb.f. | accepted |
| Oncidium papilioides | M.W.Chase & N.H.Williams | accepted |
| Oncidium tenuoides | M.W.Chase & N.H.Williams | accepted |
| Oncidium bryocladium | Schltr. | accepted |
| Oncidium adelaidae | Königer | accepted |
| Oncidium brachyandrum | Lindl. | accepted |
| Oncidium portmannii | (Bockemühl) M.W.Chase & N.H.Williams | accepted |
| Oncidium lykaiosii | R.Vásquez & Dodson | accepted |
| Oncidium inouei | T.Hashim. | accepted |
| Oncidium ornithorhynchum | Kunth | accepted |
| Oncidium trimorion | (Königer) M.W.Chase & N.H.Williams | accepted |
| Oncidium ibis | (Schltr.) M.W.Chase & N.H.Williams | accepted |
| Oncidium altissimum | (Jacq.) Sw. | accepted |
| Oncidium morganii | (Dodson) M.W.Chase & N.H.Williams | accepted |
| Oncidium multistellare | (Rchb.f.) M.W.Chase & N.H.Williams | accepted |
| Oncidium tigroides | (C.Schweinf.) M.W.Chase & N.H.Williams | accepted |
| Oncidium orbatum | Kraenzl. | accepted |
| Oncidium portillae | Königer | accepted |
| Oncidium aspidorhinum | (F.Lehm.) M.W.Chase & N.H.Williams | accepted |
| Oncidium tenuifolium | (Dalström) M.W.Chase & N.H.Williams | accepted |
| Oncidium amoenum | A.Rich. & Galeotti | accepted |
| Oncidium crescentilabium | (C.Schweinf.) M.W.Chase & N.H.Williams | accepted |
| Oncidium cristatum | (Lindl.) Beer | accepted |
| Oncidium citrinum | Lindl. | accepted |
| Oncidium trinasutum | Kraenzl. | accepted |
| Oncidium wentworthianum | Bateman ex Lindl. | accepted |
| Oncidium antioquiense | Kraenzl. | accepted |
| Oncidium malleiferum | (Rchb.f.) M.W.Chase & N.H.Williams | accepted |
| Oncidium rionegrense | Archila & Chiron | accepted |
| Oncidium juninense | (Schltr.) M.W.Chase & N.H.Williams | accepted |
| Oncidium hyphaematicum | Rchb.f. | accepted |
| Oncidium schroederianum | (O'Brien) Garay & Stacy | accepted |
| Oncidium emaculatum | Ravenna | accepted |
| Oncidium sengerorum | (Königer) J.M.H.Shaw | accepted |
| Oncidium gloriosum | (Linden & Rchb.f.) M.W.Chase & N.H.Williams | accepted |
| Oncidium wyattianum | (A.G.Wilson) M.W.Chase & N.H.Williams | accepted |
| Oncidium schillerianum | Rchb.f. | accepted |
| Oncidium dracoceps | (Dalström) M.W.Chase & N.H.Williams | accepted |
| Oncidium luteum | Rolfe | accepted |
| Oncidium unguiculatum | Lindl. | accepted |
| Oncidium calanthum | Rchb.f. | accepted |
| Oncidium tectum | Rchb.f. | accepted |
| Oncidium stenoglossum | (Schltr.) Dressler & N.H.Williams | accepted |
| Oncidium contaypacchaense | (D.E.Benn. & Christenson) M.W.Chase & N.H.Williams | accepted |
| Oncidium manningianum | Königer | accepted |
| Oncidium magdalenae | Rchb.f. | accepted |
| Oncidium warszewiczii | Rchb.f. | accepted |
| Oncidium chrysomorphum | Lindl. | accepted |
| Oncidium croatii | (Szlach. & Kolan.) J.M.H.Shaw | accepted |
| Oncidium galianoi | (Dalström & P.Nuñez) M.W.Chase & N.H.Williams | accepted |
| Oncidium geertianum | C.Morren | accepted |
| Oncidium heinzelii | Königer | accepted |
| Oncidium portillaellum | M.W.Chase & N.H.Williams | accepted |
| Oncidium deltoideum | Lindl. | accepted |
| Oncidium renatoi | (Königer) M.W.Chase & N.H.Williams | accepted |
| Oncidium cheirophorum | Rchb.f. | accepted |
| Oncidium cariniferum | (Rchb.f.) Beer | accepted |
| Oncidium braunii | Regel | accepted |
| Oncidium gramineum | (Poepp. & Endl.) M.W.Chase & N.H.Williams | accepted |
| Oncidium sceptrum | (Rchb.f. & Warsz.) M.W.Chase & N.H.Williams | accepted |
| Oncidium lisae | Königer | accepted |
| Oncidium clovesianum | (V.P.Castro & M.M.L.L.Cardoso) J.M.H.Shaw | accepted |
| Oncidium portilloides | M.W.Chase & N.H.Williams | accepted |
| Oncidium subnivalis | (Szlach. & Kolan.) J.M.H.Shaw | accepted |
| Oncidium mexicanum | (L.O.Williams) M.W.Chase & N.H.Williams | accepted |
| Oncidium obstipum | Königer & Posada | accepted |
| Oncidium retusum | Lindl. | accepted |
| Oncidium sessile | Lindl. & Paxton | accepted |
| Oncidium dactyliferum | Garay & Dunst. | accepted |
| Oncidium henning-jensenii | Pupulin & Bogarín | accepted |
| Oncidium fuchsii | Königer | accepted |
| Oncidium sotoanum | R.Jiménez & Hágsater | accepted |
| Oncidium alberti | (P.Ortiz) M.W.Chase & N.H.Williams | accepted |
| Oncidium befortianum | Königer | accepted |
| Oncidium subuligerum | (Rchb.f.) M.W.Chase & N.H.Williams | accepted |
| Oncidium lentiginosum | Rchb.f. | accepted |
| Oncidium ornithocephalum | Lindl. | accepted |
| Oncidium savegrensis | (Pupulin) M.W.Chase & N.H.Williams | accepted |
| Oncidium hirtzoides | M.W.Chase & N.H.Williams | accepted |
| Oncidium planilabre | Lindl. | accepted |
| Oncidium furcatum | (Dalström) J.M.H.Shaw | accepted |
| Oncidium laeve | (Lindl.) Beer | accepted |
| Oncidium luteopurpureum | (Lindl.) Beer | accepted |
| Oncidium andradeanum | Dodson & D.E.Benn. | accepted |
| Oncidium niesseniae | Königer | accepted |
| Oncidium garcia-barrigae | (Szlach. & Kolan.) J.M.H.Shaw | accepted |
| Oncidium roseoides | M.W.Chase & N.H.Williams | accepted |
| Oncidium heterodactylum | Kraenzl. | accepted |
| Oncidium llanachagaense | (D.E.Benn. & Christenson) M.W.Chase & N.H.Williams | accepted |
| Oncidium mantense | Dodson & R.Estrada | accepted |
| Oncidium gaviotaense | (Szlach. & Kolan.) J.M.H.Shaw | accepted |
| Oncidium velleum | (Rchb.f.) M.W.Chase & N.H.Williams | accepted |
| Oncidium hauensteinii | (Königer) M.W.Chase & N.H.Williams | accepted |
| Oncidium pseudounguiculatum | (Pupulin & Dressler) M.W.Chase & N.H.Williams | accepted |
| Oncidium fuscatum | Rchb.f. | accepted |
| Oncidium hymenanthum | (Schltr.) M.W.Chase & N.H.Williams | accepted |
| Oncidium lancifolium | Lindl. | accepted |
| Oncidium sipaliwinense | (Szlach. & Kolan.) J.M.H.Shaw | accepted |
| Oncidium anguloi | P.Ortiz | accepted |
| Oncidium manuelariasii | M.W.Chase & N.H.Williams | accepted |
| Oncidium estradae | Dodson | accepted |
| Oncidium lucianianum | (Rchb.f.) M.W.Chase & N.H.Williams | accepted |
| Oncidium dilatatum | (Rchb.f.) M.W.Chase & N.H.Williams | accepted |
| Oncidium mandritum | (Szlach. & Kolan.) J.M.H.Shaw | accepted |
| Oncidium cuculligerum | (Schltr.) M.W.Chase & N.H.Williams | accepted |
| Oncidium pichinchense | (Dodson) M.W.Chase & N.H.Williams | accepted |
| Oncidium armatum | (Rchb.f.) M.W.Chase & N.H.Williams | accepted |
| Oncidium reversum | (Rchb.f.) M.W.Chase & N.H.Williams | accepted |
| Oncidium mathieuanum | Rchb.f. & Warsz. | accepted |
| Oncidium picturatum | Rchb.f. | accepted |
| Oncidium hapalotyle | Schltr. | accepted |
| Oncidium fasciferum | Rchb.f. & Warsz. | accepted |
| Oncidium panchrysum | Lindl. | accepted |
| Oncidium ciliicolumna | (Szlach. & Kolan.) J.M.H.Shaw | accepted |
| Oncidium flavobrunneum | (Senghas) M.W.Chase & N.H.Williams | accepted |
| Oncidium parviflorum | L.O.Williams | accepted |
| Oncidium oblongatum | Lindl. | accepted |
| Oncidium exalatum | Hágsater | accepted |
| Oncidium crassidactylum | (Dalström & Ruíz Pérez) J.M.H.Shaw | accepted |
| Oncidium pictum | Kunth | accepted |
| Oncidium ionopterum | Rchb.f. | accepted |
| Oncidium pongratzianum | Königer & J.Portilla | accepted |
| Oncidium curvipetalum | (D.E.Benn. & Christenson) M.W.Chase & N.H.Williams | accepted |
| Oncidium schildhaueri | Königer | accepted |
| Oncidium lepidum | Linden & Rchb.f. | accepted |
| Oncidium peltiforme | Königer | accepted |
| Oncidium bracteatum | Warsz. & Rchb.f. | accepted |
| Oncidium toachicum | Dodson | accepted |
| Oncidium microstigma | Rchb.f. | accepted |
| Oncidium vierlingii | (Senghas) M.W.Chase & N.H.Williams | accepted |
| Oncidium uribei | (Szlach. & Kolan.) J.M.H.Shaw | accepted |
| Oncidium tetrotis | Rchb.f. & Warsz. | accepted |
| Oncidium astranthum | (Linden & Rchb.f.) M.W.Chase & N.H.Williams | accepted |
| Oncidium buchtienoides | M.W.Chase & N.H.Williams | accepted |
| Oncidium polycladium | Rchb.f. ex Lindl. | accepted |
| Oncidium hermansianum | (Königer) M.W.Chase & N.H.Williams | accepted |
| Oncidium neovierlingii | J.M.H.Shaw | accepted |
| Oncidium discobulbon | Kraenzl. | accepted |
| Oncidium rutkisii | Foldats | accepted |
| Oncidium vallecaucanum | (Szlach. & Kolan.) J.M.H.Shaw | accepted |
| Oncidium khoochongyeei | J.M.H.Shaw | accepted |
| Oncidium baueri | Lindl. | accepted |
| Oncidium platychilum | Schltr. | accepted |
| Oncidium orthostatoides | D.E.Benn. & Christenson | accepted |
| Oncidium hastatum | (Bateman) Lindl. | accepted |
| Oncidium obryzatum | Rchb.f. & Warsz. | accepted |
| Oncidium blandum | (Rchb.f.) M.W.Chase & N.H.Williams | accepted |
| Oncidium gramazuense | (D.E.Benn. & Christenson) M.W.Chase & N.H.Williams | accepted |
| Oncidium hintonii | L.O.Williams | accepted |
| Oncidium hirtziana | J.M.H.Shaw | accepted |
| Oncidium tipuloides | Rchb.f. | accepted |
| Oncidium kegeljanii | (É.Morren) M.W.Chase & N.H.Williams | accepted |
| Oncidium praenitens | (Rchb.f.) M.W.Chase & N.H.Williams | accepted |
| Oncidium putumayense | (P.Ortiz) M.W.Chase & N.H.Williams | accepted |
| Oncidium crinitum | (Rchb.f.) M.W.Chase & N.H.Williams | accepted |
| Oncidium cinnamomeum | (R.Warner & B.S.Williams) M.W.Chase & N.H.Williams | accepted |
| Oncidium crocidipterum | (Rchb.f.) M.W.Chase & N.H.Williams | accepted |
| Oncidium odoratum | (Lindl.) Beer | accepted |
| Oncidium gentryi | (Dodson) M.W.Chase & N.H.Williams | accepted |
| Oncidium auriculatoides | M.W.Chase & N.H.Williams | accepted |
| Oncidium nevadense | (Rchb.f.) M.W.Chase & N.H.Williams | accepted |
| Oncidium echinops | Königer | accepted |
| Oncidium adamsii | (Dodson) M.W.Chase & N.H.Williams | accepted |
| Oncidium cultratum | Lindl. | accepted |
| Oncidium imitans | Dressler | accepted |
| Oncidium anthocrene | Rchb.f. | accepted |
| Oncidium millianum | Rchb.f. | accepted |
| Oncidium nobile | (Rchb.f.) M.W.Chase & N.H.Williams | accepted |
| Oncidium posadaroides | M.W.Chase & N.H.Williams | accepted |
| Oncidium ariasii | Königer | accepted |
| Oncidium praestanoides | M.W.Chase & N.H.Williams | accepted |
| Oncidium ornithopodum | Rchb.f. | accepted |
| Oncidium massangei | É.Morren | accepted |
| Oncidium pergameneum | Lindl. | accepted |
| Oncidium micklowii | (Dalström) M.W.Chase & N.H.Williams | accepted |
| Oncidium gayi | J.M.H.Shaw | accepted |
| Oncidium unguiculoides | M.W.Chase & N.H.Williams | accepted |
| Oncidium leleui | R.Jiménez & Soto Arenas | accepted |
| Oncidium saxicola | Schltr. | accepted |
| Oncidium alexandrae | (Bateman) M.W.Chase & N.H.Williams | accepted |
| Oncidium vernixium | Linden & Rchb.f. | accepted |
| Oncidium maculatum | (Lindl.) Lindl. | accepted |
| Oncidium punctulatum | Dressler | accepted |
| Oncidium ligiae | Königer | accepted |
| Oncidium hallii | (Lindl.) Beer | accepted |
| Oncidium colombianum | (Szlach. & Kolan.) J.M.H.Shaw | accepted |
| Oncidium jarmilae | Königer | accepted |
| Oncidium uncinatum | (Pupulin, G.Merino & J.Valle) J.M.H.Shaw | accepted |
| Oncidium callacallaense | (D.E.Benn. & Christenson) M.W.Chase & N.H.Williams | accepted |
| Oncidium brevilabrum | Rolfe | accepted |
| Oncidium digitoides | M.W.Chase & N.H.Williams | accepted |
| Oncidium acinaceum | Lindl. | accepted |
| Oncidium leopardinum | Lindl. | accepted |
| Oncidium deburghgraeveanum | (Dalström & G.Merino) J.M.H.Shaw | accepted |
| Oncidium machupicchuense | (D.E.Benn. & Christenson) M.W.Chase & N.H.Williams | accepted |
| Oncidium arangoi | (Königer) M.W.Chase & N.H.Williams | accepted |
| Oncidium magnificum | Senghas | accepted |
| Oncidium brownii | (Garay) M.W.Chase & N.H.Williams | accepted |
| Oncidium rhynchanthum | (Rchb.f.) M.W.Chase & N.H.Williams | accepted |
| Oncidium sarahforsythiae | J.M.H.Shaw | accepted |
| Oncidium bicallosoides | M.W.Chase & N.H.Williams | accepted |
| Oncidium regentianum | J.M.H.Shaw | accepted |
| Oncidium romanii | Königer | accepted |
| Oncidium platynaris | (Dalström) M.W.Chase & N.H.Williams | accepted |
| Oncidium crassopterum | Chiron | accepted |
| Oncidium karwinskii | (Lindl.) Lindl. | accepted |
| Oncidium lineoligerum | Rchb.f. & Warsz. | accepted |
| Oncidium sphacelatum | Lindl. | accepted |
| Oncidium hieroglyphicum | Rchb.f. & Warsz. | accepted |
| Oncidium aristuliferum | (Kraenzl.) M.W.Chase & N.H.Williams | accepted |
| Oncidium mixturum | (Dalström & Sönnemark) M.W.Chase & N.H.Williams | accepted |
| Oncidium cajamarcae | Schltr. | accepted |
| Oncidium hastilabium | (Lindl.) Beer | accepted |
| Oncidium abruptum | Linden & Rchb.f. ex Kraenzl. | accepted |
| Oncidium epidendroides | (Kunth) Beer | accepted |
| Oncidium silvanoi | Königer | accepted |
| Oncidium chasei | (D.E.Benn. & Christenson) M.W.Chase & N.H.Williams | accepted |
| Oncidium spectatissimum | (Lindl.) M.W.Chase & N.H.Williams | accepted |
| Oncidium fleckiorum | Königer | accepted |
| Oncidium tigrinum | Lex. | accepted |
| Oncidium oliganthum | (Rchb.f.) L.O.Williams ex Correll | accepted |
| Oncidium leucomelas | (Rchb.f.) Dressler & N.H.Williams | accepted |
| Oncidium baccatum | Garay & Dunst. | accepted |
| Oncidium tigratum | Rchb.f. & Warsz. | accepted |
| Oncidium tenuipes | Kraenzl. | accepted |
| Oncidium sathishkumarii | J.M.H.Shaw | accepted |
| Oncidium ghiesbreghtianum | A.Rich. & Galeotti | accepted |
| Oncidium auriculatum | (Rolfe) M.W.Chase & N.H.Williams | accepted |
| Oncidium lehmannianum | (Kraenzl.) M.W.Chase & N.H.Williams | accepted |
| Oncidium albicans | Königer | accepted |
| Oncidium nigratum | Lindl. & Paxton | accepted |
| Oncidium trachycaulon | Schltr. | accepted |
| Oncidium panduratoides | M.W.Chase & N.H.Williams | accepted |
| Oncidium posadarum | Königer | accepted |
| Oncidium bustosii | Königer | accepted |
| Oncidium perpusillum | (Kraenzl.) M.W.Chase & N.H.Williams | accepted |
| Oncidium caucanum | Schltr. | accepted |
| Oncidium reversoides | M.W.Chase & N.H.Williams | accepted |
| Oncidium minaxoides | M.W.Chase & N.H.Williams | accepted |
| Oncidium noezlianum | (Mast.) M.W.Chase & N.H.Williams | accepted |
| Oncidium cirrhosum | (Lindl.) Beer | accepted |
| Oncidium dulcineae | (Pupulin & G.A.Rojas) M.W.Chase & N.H.Williams | accepted |
| Oncidium stelligerum | Rchb.f. | accepted |
| Oncidium eliae | (Rolfe) M.W.Chase & N.H.Williams | accepted |
| Oncidium storkii | Ames & C.Schweinf. | accepted |
| Oncidium heteranthum | Poepp. & Endl. | accepted |
| Oncidium oxyceras | (Königer & J.G.Weinm.) M.W.Chase & N.H.Williams | accepted |
| Oncidium hennisii | (Rolfe) M.W.Chase & N.H.Williams | accepted |
| Oncidium panamense | Schltr. | accepted |
| Oncidium tripudians | (Rchb.f. & Warsz.) M.W.Chase & N.H.Williams | accepted |
| Oncidium leucochilum | Bateman ex Lindl. | accepted |
| Oncidium abortivum | Rchb.f. | accepted |
| Oncidium brevicorne | (Königer & J.Portilla) M.W.Chase & N.H.Williams | accepted |
| Oncidium caquetanum | (Schltr.) M.W.Chase & N.H.Williams | accepted |
| Oncidium universitas-cuencae | Königer & D.Vázquez | accepted |
| Oncidium lehmannii | (Rchb.f.) M.W.Chase & N.H.Williams | accepted |
| Oncidium ayabacanum | D.E.Benn. & Christenson | accepted |
| Oncidium amabile | Rchb.f. | accepted |
| Oncidium zelenkoanum | Dressler & Pupulin | accepted |
| Oncidium reflexum | Lindl. | accepted |
| Oncidium incurvum | Barker ex Lindl. | accepted |
| Oncidium vulcanicum | (Rchb.f.) M.W.Chase & N.H.Williams | accepted |
| Oncidium integrilabre | (Pupulin) M.W.Chase & N.H.Williams | accepted |
| Oncidium amazonicum | (Schltr.) M.W.Chase & N.H.Williams | accepted |
| Oncidium coquianum | Pupulin & Dalström | accepted |
| Oncidium cruciferum | Rchb.f. & Warsz. | accepted |
| Oncidium allenii | Dressler | accepted |
| Oncidium nebulosum | Lindl. | accepted |
| Oncidium ensatum | Lindl. | accepted |
| Oncidium aurarium | Rchb.f. | accepted |
| Oncidium mirandum | (Rchb.f.) M.W.Chase & N.H.Williams | accepted |
| Oncidium poikilostalix | (Kraenzl.) M.W.Chase & N.H.Williams | accepted |
| Oncidium zimmermanniana | (Königer) J.M.H.Shaw | accepted |
| Oncidium cruentoides | M.W.Chase & N.H.Williams | accepted |
| Oncidium koechlinianum | Collantes & G.Gerlach | accepted |
| Oncidium weinmannianum | (Königer) M.W.Chase & N.H.Williams | accepted |
| Oncidium wallisoides | M.W.Chase & N.H.Williams | accepted |
| Oncidium obryzatoides | Kraenzl. | accepted |
| Oncidium leeanum | (Rchb.f.) M.W.Chase & N.H.Williams | accepted |
| Oncidium martinezii | Königer | accepted |
| Oncidium tenellum | F.Gérard | accepted |
| Oncidium wallisii | (Linden & Rchb.f.) M.W.Chase & N.H.Williams | accepted |
| Oncidium rodrigoi | Königer | accepted |
| Oncidium lepturum | Rchb.f. | accepted |
| Oncidium panduratum | Rolfe | accepted |
| Oncidium harryanum | (Rchb.f.) M.W.Chase & N.H.Williams | accepted |
| Oncidium povedanum | (P.Ortiz) M.W.Chase & N.H.Williams | accepted |
| Oncidium abortivoides | M.W.Chase & N.H.Williams | accepted |
| Oncidium sergii | (P.Ortiz) M.W.Chase & N.H.Williams | accepted |
| Oncidium marinii | (Königer) M.W.Chase & N.H.Williams | accepted |
| Oncidium mirandoides | M.W.Chase & N.H.Williams | accepted |
| Oncidium graminifolium | (Lindl.) Lindl. | accepted |
| Oncidium macrobulbon | (Kraenzl.) M.W.Chase & N.H.Williams | accepted |
| Oncidium heterosepalum | (Rchb.f.) M.W.Chase & N.H.Williams | accepted |
| Oncidium tenuirostre | (Kraenzl.) M.W.Chase & N.H.Williams | accepted |
| Oncidium stenobulbon | Kraenzl. | accepted |
| Oncidium auroincarum | (Dalström & Ruíz Pérez) J.M.H.Shaw | accepted |
| Oncidium reichenheimii | (Linden & Rchb.f.) Garay & Stacy | accepted |
| Oncidium maduroi | Dressler | accepted |
| Oncidium isthmi | Schltr. | accepted |
| Oncidium boothianum | Rchb.f. | accepted |
| Oncidium pentadactylon | Lindl. | accepted |
| Oncidium strictum | (Cogn.) M.W.Chase & N.H.Williams | accepted |
| Oncidium filamentosum | (Dalström & Ruíz Pérez) J.M.H.Shaw | accepted |
| Oncidium koenigeri | M.W.Chase & N.H.Williams | accepted |
| Oncidium lutzii | (Königer) M.W.Chase & N.H.Williams | accepted |
| Oncidium bryolophotum | Rchb.f. | accepted |
| Oncidium herrenhusanum | Königer & Schlumpb. | accepted |
| Oncidium alvarezii | (P.Ortiz) M.W.Chase & N.H.Williams | accepted |
| Oncidium ansiferum | Rchb.f. | accepted |
| Oncidium weddellii | Lindl. | accepted |
| Oncidium lindleyoides | M.W.Chase & N.H.Williams | accepted |
| Oncidium medinense | (Campacci) J.M.H.Shaw | accepted |
| Oncidium angustisegmentum | D.E.Benn. & Christenson | accepted |
| Oncidium surinamense | (Szlach. & Kolan.) J.M.H.Shaw | accepted |
| Oncidium orthotis | Rchb.f. | accepted |
| Oncidium polyadenium | Lindl. | accepted |
| Oncidium iricolor | Rchb.f. | accepted |
| Oncidium oviedomotae | Hágsater | accepted |
| Oncidium maizifolium | Lindl. | accepted |
| Oncidium tsubotae | Königer | accepted |
| Oncidium picturatissimum | (Kraenzl.) M.W.Chase & N.H.Williams | accepted |
| Oncidium ivoneae | Königer | accepted |
| Oncidium xanthornis | Rchb.f. ex Kraenzl. | accepted |
| Oncidium cristatellum | Garay | accepted |
| Oncidium undatiflorum | (Ruiz & Pav.) Pupulin | accepted |
| Oncidium endocharis | Rchb.f. | accepted |
| Oncidium huebneri | (Mansf.) M.W.Chase & N.H.Williams | accepted |
| Oncidium cardiostigma | Rchb.f. | accepted |
| Oncidium caymanense | Moir | synonym |
| Oncidium variegatum f. majus | (Moir & A.D.Hawkes) Withner | synonym |
| Oncidium variegatum f. roseum | (Moir & A.D.Hawkes) Withner | synonym |
| Oncidium variegatum f. furcyense | (Moir) Withner | synonym |
| Oncidium leiboldii | Rchb.f. | synonym |
| Oncidium leiboldii var. majus | Moir & A.D.Hawkes | synonym |
| Oncidium variegatum f. purpureum | (Moir) Withner | synonym |
| Oncidium variegatum ssp. leiboldii | (Rchb.f.) Withner | synonym |
| Oncidium variegatum var. purpureum | Moir & A.D.Hawkes | synonym |
| Oncidium variegatum f. album | (Moir & A.D.Hawkes) Withner | synonym |
| Oncidium variegatum var. velutinum | (Lindl. & Paxton) Griseb. | synonym |
| Oncidium cubense | Moir | synonym |
| Oncidium variegatum ssp. velutinum | (Lindl. & Paxton) Withner | synonym |
| Oncidium velutinum | Lindl. & Paxton | synonym |
| Oncidium variegatum var. roseum | Moir & A.D.Hawkes | synonym |
| Oncidium velutinum var. purpureum | Moir | synonym |
| Oncidium varvelum | Moir | synonym |
| Oncidium furcyense | Moir | synonym |
| Oncidium leiboldii var. album | Moir & A.D.Hawkes | synonym |
| Oncidium variegatum f. varvelum | (Moir) Withner | synonym |
| Oncidium variegatum | (Sw.) Sw. | synonym |
| Oncidium prionochilum | Kraenzl. | synonym |
| Oncidium luridum var. intermedium | Lindl. | synonym |
| Oncidium guttatum var. intermedium | (Lindl.) Rchb.f. | synonym |
| Oncidium guttatum var. dodgsonii | (B.S.Williams) Cogn. | synonym |
| Oncidium boydii | Lindl. | synonym |
| Oncidium guttatum | (L.) Rchb.f. | synonym |
| Oncidium luridum var. dodgsonii | B.S.Williams | synonym |
| Oncidium intermedium | Knowles & Westc. | ambiguous synonym |
| Oncidium quadripetalum | Sw. | synonym |
| Oncidium pauciflorum | Lindl. | synonym |
| Oncidium cuneatum | Lindl. | ambiguous synonym |
| Oncidium tetrapetalum | (Jacq.) Willd. | synonym |
| Oncidium luridum var. guttatum | (L.) Lindl. | synonym |
| Oncidium guttatum var. auriculatum | Cogn. | synonym |
| Oncidium tricolor | Hook. | synonym |
| Oncidium osmentii | Withner | synonym |
| Oncidium quadrilobum | C.Schweinf. | synonym |
| Oncidium hawkesianum | Moir | synonym |
| Oncidium gauntlettii | Withner & H.P.Jesup | synonym |
| Oncidium variegatum var. bahamense | (Nash) Withner | synonym |
| Oncidium variegatum ssp. bahamense | (Nash) Withner | synonym |
| Oncidium bahamense | Nash | synonym |
| Oncidium sylvestre | Lindl. | synonym |
| Oncidium variegatum ssp. sylvestre | (Lindl.) Withner | synonym |
| Oncidium variegatum ssp. scandens | (Moir) Withner | synonym |
| Oncidium scandens | Moir | synonym |
| Oncidium gundlachii | C.Wright ex Griseb. | synonym |
| Oncidium triquetrum | (Sw.) R.Br. | synonym |
| Oncidium dubium | André | synonym |
| Oncidium tuerckheimii | Cogn. | synonym |
| Oncidium arizajulianum | Withner & J.Jiménez Alm. | synonym |
| Oncidium urophyllum f. flavum | R.J.Midgett | synonym |
| Oncidium urophyllum | Lodd. ex Lindl. | synonym |
| Oncidium compressicaule | Withner | synonym |
| Oncidium guibertianum | A.Rich. | synonym |
| Oncidium moirianum | Osment | synonym |
| Oncidium lyratum | Withner | synonym |
| Oncidium caribense | Moir | synonym |
| Oncidium desertorum | Nash ex Withner | synonym |
| Oncidium desertorum var. aureorubrum | Moir | synonym |
| Oncidium guianense f. aureorubrum | (Moir) Withner | synonym |
| Oncidium guianense var. alborubrum | (Moir & A.D.Hawkes) K.S.Wilson | synonym |
| Oncidium guianense f. album | (Moir & A.D.Hawkes) Withner | synonym |
| Oncidium guianense var. aureorubrum | (Moir) K.S.Wilson | synonym |
| Oncidium guianense ssp. alborubrum | (Moir & A.D.Hawkes) Withner | synonym |
| Oncidium intermedium var. album | Moir & A.D.Hawkes | synonym |
| Oncidium guianense | (Aubl.) Garay | synonym |
| Oncidium intermedium | Bertero ex Spreng. | ambiguous synonym |
| Oncidium desertorum var. album | (Moir & A.D.Hawkes) Garay | synonym |
| Oncidium guianense var. album | (Moir & A.D.Hawkes) K.S.Wilson | synonym |
| Oncidium intermedium var. alborubrum | Moir & A.D.Hawkes | synonym |
| Oncidium desertorum var. alborubrum | (Moir & A.D.Hawkes) Garay | synonym |
| Oncidium calochilum | Cogn. | synonym |
| Oncidium sasseri | Moir | synonym |
| Oncidium lemonianum | Lindl. | synonym |
| Oncidium haitiense | Leonard & Ames | synonym |
| Oncidium jimenezii | Moir | synonym |
| Oncidium henekenii | R.H.Schomb. ex Lindl. | synonym |
| Oncidium lucayanum var. rubiginosum | Moir | synonym |
| Oncidium lucayanum var. aureum | Moir | synonym |
| Oncidium lucayanum var. purpureum | Moir | synonym |
| Oncidium lucayanum | Nash | synonym |
| Oncidium usneoides | Lindl. | synonym |
| Oncidium lanceanum f. aureum | Christenson | synonym |
| Oncidium lanceanum | Lindl. | synonym |
| Oncidium chrysops | Rchb.f. | synonym |
| Oncidium jonesianum var. flavens | Rchb.f. | synonym |
| Oncidium jonesianum var. phaeanthum | Sander | synonym |
| Oncidium jonesianum | Rchb.f. | synonym |
| Oncidium funckii | Lubbers | synonym |
| Oncidium microchilum | Bateman ex Lindl. | synonym |
| Oncidium lacerum | Lindl. | synonym |
| Oncidium stipitatum | Lindl. | synonym |
| Oncidium stipitatum var. platyonyx | Rchb.f. | synonym |
| Oncidium brachyphyllum | Lindl. | synonym |
| Oncidium cebolleta | (Jacq.) Sw. | synonym |
| Oncidium humboldtii | Schltr. | synonym |
| Oncidium ottonis | Rchb.f. ex Kraenzl. | ambiguous synonym |
| Oncidium johnii | Oppenheim | synonym |
| Oncidium jonesianum var. binotii | Pabst | synonym |
| Oncidium flavovirens | L.O.Williams | synonym |
| Oncidium schwambachiae | V.P.Castro & Toscano | synonym |
| Oncidium ascendens | Lindl. | synonym |
| Oncidium subulifolium | Schltr. | synonym |
| Oncidium bolivianense | Oppenheim | synonym |
| Oncidium columbae | Rchb. ex Lindl. | synonym |
| Oncidium saltator | Lem. | synonym |
| Oncidium stramineum | Bateman ex Lindl. | synonym |
| Oncidium arietinum | Kraenzl. | synonym |
| Oncidium lindenii | Brongn. | synonym |
| Oncidium retemeyerianum | Rchb.f. | synonym |
| Oncidium andreanum | (Cogn.) Garay | synonym |
| Oncidium carthagenense var. andreanum | Cogn. | synonym |
| Oncidium ultrajectinum | Pulle | synonym |
| Oncidium wittii | Oppenheim | synonym |
| Oncidium sepula | Hoffmanns. | synonym |
| Oncidium glaziovii | Cogn. | synonym |
| Oncidium cebolleta var. purum | L.C.Menezes | synonym |
| Oncidium ostenianum | Schltr. | synonym |
| Oncidium cebolleta f. purum | (L.C.Menezes) F.Barros & J.A.N.Bat. | synonym |
| Oncidium cepula | Hoffmanns. | synonym |
| Oncidium maculatum var. herbaceum | Lindl. | synonym |
| Oncidium maculatum var. russellianum | Lindl. | synonym |
| Oncidium maculatum | (Aubl.) Urb. | ambiguous synonym |
| Oncidium undulatum | (Sw.) Salisb. | ambiguous synonym |
| Oncidium splendidum | A.Rich. ex Duch. | synonym |
| Oncidium splendidum var. xanthinum | C.H.Curtis | synonym |
| Oncidium tigrinum var. splendidum | (A.Rich. ex Duch.) Hook.f. | synonym |
| Oncidium splendidum var. holoxanthum | C.H.Curtis | synonym |
| Oncidium undulatum f. flavovirens | P.M.Br. | synonym |
| Oncidium morenoi | Dodson & Luer | synonym |
| Oncidium thyrsiflorum | Barb.Rodr. | synonym |
| Oncidium nanum | Lindl. | synonym |
| Oncidium patulum | Schltr. | synonym |
| Oncidium pumilum var. megalanthum | Schltr. | synonym |
| Oncidium pumilum var. laxum | Kraenzl. | synonym |
| Oncidium pumilum | Lindl. | synonym |
| Oncidium pumilum var. robustum | Cogn. | synonym |
| Oncidium minutiflorum | Schltr. | synonym |
| Oncidium pumilum var. angustifolium | Cogn. | synonym |
| Oncidium margalefii | Hágsater | synonym |
| Oncidium sprucei | Lindl. | synonym |
| Oncidium oerstedii var. crispiflorum | Schltr. | synonym |
| Oncidium luridum var. morrenii | Lindl. | synonym |
| Oncidium luridum var. henchmannii | Knowles & Westc. | synonym |
| Oncidium guttatum var. morrenii | (Lindl.) Rchb.f. | synonym |
| Oncidium henchmannii | (Knowles & Westc.) Lodd. ex Paxton | synonym |
| Oncidium guttatum var. roseum | Linden | synonym |
| Oncidium cosymbephorum | C.Morren | synonym |
| Oncidium carthagenense var. sanguineum | (Lindl.) Lindl. | synonym |
| Oncidium roseum | Lodd. ex Paxton | ambiguous synonym |
| Oncidium salvadorense | Schltr. | synonym |
| Oncidium panduriferum | Kunth | synonym |
| Oncidium carthagenense | (Jacq.) Sw. | synonym |
| Oncidium carthagenense var. klotzschii | Lindl. | synonym |
| Oncidium carthagenense var. swartzii | Lindl. | synonym |
| Oncidium obsoletum | Galeotti ex Lindl. | synonym |
| Oncidium sanguineum var. auriculatum | Regel | synonym |
| Oncidium huntleyanum | Beer ex Lindl. | synonym |
| Oncidium sanguineum var. roseum | Regel | synonym |
| Oncidium sanguineum | Lindl. | synonym |
| Oncidium kymatoides | Kraenzl. | synonym |
| Oncidium huntianum | Hook. | synonym |
| Oncidium luridum | Lindl. | synonym |
| Oncidium aurisasinorum | Standl. & L.O.Williams | synonym |
| Oncidium nudum | Bateman ex Lindl. | synonym |
| Oncidium ebrachiatum | Ames & C.Schweinf. | synonym |
| Oncidium stacyi | Garay | synonym |
| Oncidium teres | Ames & C.Schweinf. | synonym |
| Oncidium helicanthum | Kraenzl. | synonym |
| Oncidium luridum var. atratum | Lindl. | synonym |
| Oncidium oestlundianum | L.O.Williams | synonym |
| Oncidium lowii | Rolfe | synonym |
| Oncidium longifolium | Lindl. | synonym |
| Oncidium carthagenense var. oerstedii | (Rchb.f.) Lindl. | synonym |
| Oncidium oerstedii | Rchb.f. | synonym |
| Oncidium cavendishii | B.S.Williams | synonym |
| Oncidium pachyphyllum | Hook. | synonym |
| Oncidium cavendishianum | Bateman | synonym |
| Oncidium bicallosum | Lindl. | synonym |
| Oncidium orthostates | Ridl. | synonym |
| Oncidium pirarense | Rchb.f. | synonym |
| Oncidium andigenum | Linden & Rchb.f. | synonym |
| Oncidium macrotyle | Königer & J.Portilla | synonym |
| Oncidium radiatum | (Lindl.) Rchb.f. ex Foldats | synonym |
| Oncidium leochiloides | Foldats | synonym |
| Oncidium tarquiense | Stacy | synonym |
| Oncidium alticola | Stacy | synonym |
| Oncidium cucullatum var. phalaenopsis | (Linden & Rchb.f.) G.Nicholson | synonym |
| Oncidium chimborazoense | Stacy | synonym |
| Oncidium phalaenopsis var. excellens | Lindl. | synonym |
| Oncidium olivaceum var. phalaenopsis | (Linden & Rchb.f.) Sander | synonym |
| Oncidium cucullatum var. spathulatum | Lindl. | synonym |
| Oncidium spathulatum | (Lindl.) Stacy | synonym |
| Oncidium cucullatum var. dayanum | Rchb.f. | synonym |
| Oncidium phalaenopsis | Linden & Rchb.f. | synonym |
| Oncidium dayanum | (Rchb.f.) Stacy | synonym |
| Oncidium olivaceum var. nubigenum | (Lindl.) Sander | synonym |
| Oncidium azuayense | Kraenzl. | synonym |
| Oncidium cucullatum var. dolabratum | Stacy | synonym |
| Oncidium cucullatum var. maculosum | Lindl. | synonym |
| Oncidium olivaceum var. macrochilum | (Lindl.) Sander | synonym |
| Oncidium nubigenum | Lindl. | synonym |
| Oncidium cucullatum var. macrochilum | Lindl. | synonym |
| Oncidium aequinoctiale | Stacy | synonym |
| Oncidium erosilabium | Stacy | synonym |
| Oncidium cucullatum var. nubigenum | (Lindl.) Lindl. | synonym |
| Oncidium cucullatum var. andigenum | Burb. | synonym |
| Oncidium tunguraguense | Stacy | synonym |
| Oncidium olivaceum | Kunth | synonym |
| Oncidium olivaceum var. giganteum | (Anon.) Stacy | synonym |
| Oncidium cucullatum var. giganteum | Anon. | synonym |
| Oncidium olivaceum var. lawrenceanum | Rob. | synonym |
| Oncidium cucullatum subvar. olivaceum | (Kunth) A.H.Kent | synonym |
| Oncidium kennedyi | Stacy | synonym |
| Oncidium rhodostictum | Kraenzl. | synonym |
| Oncidium cucullatum | Lindl. | synonym |
| Oncidium tripterygium | Rchb.f. | synonym |
| Oncidium hernandezii | Königer | synonym |
| Oncidium sanguinolentum | (Lindl.) Schltr. | synonym |
| Oncidium cucullatum var. flavidum | Linden | synonym |
| Oncidium olivaceum var. sanguinolentum | (Lindl.) Sander | synonym |
| Oncidium cucullatum var. flavidum | B.S.Williams | synonym |
| Oncidium cucullatum var. sanguinolentum | (Lindl.) Lindl. | synonym |
| Oncidium mimeticum | Stacy | synonym |
| Oncidium olivaceum var. flavidum | (B.S.Williams) Sander | synonym |
| Oncidium mimeticum var. flavidum | (B.S.Williams) Stacy | synonym |
| Oncidium bicolor | Lindl. | ambiguous synonym |
| Oncidium proliferum | Rchb.f. ex Kraenzl. | synonym |
| Oncidium sellowii | Cogn. | synonym |
| Oncidium hookeri | Rolfe | synonym |
| Oncidium regentii | V.P.Castro & G.F.Carr | synonym |
| Oncidium chapadense | V.P.Castro & Campacci | synonym |
| Oncidium mixtum | Schltr. | synonym |
| Oncidium donianum | Bateman ex W.H.Baxter | synonym |
| Oncidium culuenense | (Docha Neto & Benelli) Königer | synonym |
| Oncidium martianum | Lindl. | synonym |
| Oncidium uhlii | (Chiron & V.P.Castro) Königer | synonym |
| Oncidium bohnkianum | V.P.Castro & G.F.Carr | synonym |
| Oncidium pubes | Lindl. | synonym |
| Oncidium gilvum | (Vell.) Pabst | synonym |
| Oncidium phantasmaticum | Lem. | synonym |
| Oncidium puberum | Spreng. | synonym |
| Oncidium barbatum var. limbatum | Lindl. | synonym |
| Oncidium barbatum ssp. microglossum | (Klotzsch) W.Zimm. | synonym |
| Oncidium barbatum var. johnianum | (Schltr.) Kraenzl. | synonym |
| Oncidium suscephalum | Barb.Rodr. | synonym |
| Oncidium barbatum ssp. limbatum | (Lindl.) W.Zimm. | synonym |
| Oncidium barbatum var. labiosum | W.Zimm. | synonym |
| Oncidium microglossum | Klotzsch | synonym |
| Oncidium barbatum | Lindl. | ambiguous synonym |
| Oncidium ciliatulum | Hoffmanns. ex Lindl. | synonym |
| Oncidium johnianum | Schltr. | synonym |
| Oncidium calimanianum | (Guiard) Königer | synonym |
| Oncidium reductum | Kraenzl. | synonym |
| Oncidium uniflorum var. robustum | Regel | synonym |
| Oncidium biflorum | Barb.Rodr. | synonym |
| Oncidium uniflorum | Booth ex Lindl. | synonym |
| Oncidium micropogon var. bahiense | Cogn. | synonym |
| Oncidium blossfeldianum | Schltr. | synonym |
| Oncidium bahiense | (Cogn.) Schltr. | synonym |
| Oncidium barbatum var. ciliatum | (Lindl.) Lindl. | synonym |
| Oncidium psyche | Schltr. | synonym |
| Oncidium ciliolatum | Hoffmanns. | synonym |
| Oncidium trichodes | Lindl. | synonym |
| Oncidium subciliatum | Hoffmanns. | synonym |
| Oncidium reisii | Hoehne & Schltr. | synonym |
| Oncidium ciliatum | Lindl. | synonym |
| Oncidium barbatum | Lindl. & Paxton | ambiguous synonym |
| Oncidium fimbriatum | Hoffmanns. | ambiguous synonym |
| Oncidium waluewa | Rolfe | synonym |
| Oncidium pardoglossum | Rchb.f. | synonym |
| Oncidium marshallianum | Rchb.f. | synonym |
| Oncidium hydrophilum | Barb.Rodr. | synonym |
| Oncidium hydrophilum var. immaculatum | L.C.Menezes | synonym |
| Oncidium hydrophilum f. immaculatum | (L.C.Menezes) Christenson | synonym |
| Oncidium concolor var. ottonis | (Schltr.) Pabst | synonym |
| Oncidium ottonis | Schltr. | ambiguous synonym |
| Oncidium itapetingense | V.P.Castro & Chiron | synonym |
| Oncidium bifolium var. majus | B.S.Williams | synonym |
| Oncidium beyrodtianum | Schltr. | synonym |
| Oncidium batemanianum | Griseb. | ambiguous synonym |
| Oncidium bifolium | Sims | synonym |
| Oncidium chrysothyrsus | Rchb.f. ex R.Warner | synonym |
| Oncidium celsissimum | Hoffmanns. | synonym |
| Oncidium celsianum | A.Rich. | synonym |
| Oncidium blanchetii | Rchb.f. | synonym |
| Oncidium majevskyae | Toscano & V.P.Castro | synonym |
| Oncidium chrysopterum | (Lindl.) Kraenzl. | synonym |
| Oncidium macropetalum var. chrysopterum | Lindl. | synonym |
| Oncidium brunleesianum | Rchb.f. | synonym |
| Oncidium vellozoanum | Pabst | synonym |
| Oncidium echinatum | (Barb.Rodr.) Cogn. | ambiguous synonym |
| Oncidium echinatum var. brunleesianum | (Rchb.f.) Cogn. | synonym |
| Oncidium mellifluum | Kraenzl. | synonym |
| Oncidium loefgrenii | Cogn. | synonym |
| Oncidium longipes var. croesus | (Rchb.f.) A.H.Kent | synonym |
| Oncidium croesus | Rchb.f. | synonym |
| Oncidium emilii | Schltr. | synonym |
| Oncidium williamsii | Schltr. | synonym |
| Oncidium gomesii | Cogn. | synonym |
| Oncidium warmingii | Rchb.f. | synonym |
| Oncidium vagans | C.Schweinf. | synonym |
| Oncidium schadei | L.O.Williams | synonym |
| Oncidium paranaense | Kraenzl. | synonym |
| Oncidium hatschbachii | Schltr. | synonym |
| Oncidium praetextum | Rchb.f. | synonym |
| Oncidium enderianum | Mast. | synonym |
| Oncidium varicosum var. moortebeekiense | L.Linden | synonym |
| Oncidium insigne | (Rolfe) Christenson | synonym |
| Oncidium varicosum var. insigne | Rolfe | synonym |
| Oncidium cogniauxianum | Schltr. | synonym |
| Oncidium alfredii | Kraenzl. | synonym |
| Oncidium gracillimum | Cogn. | ambiguous synonym |
| Oncidium zikanianum | Hoehne & Schltr. | synonym |
| Oncidium gracile | Lindl. | ambiguous synonym |
| Oncidium macropetalum var. micranthum | Pabst | synonym |
| Oncidium juscopetalum | Hoehne | synonym |
| Oncidium macropetalum | Lindl. | ambiguous synonym |
| Oncidium spilopterum aureum | Rolfe | synonym |
| Oncidium batemanianum var. spilopterum | (Lindl.) Lindl. | synonym |
| Oncidium spilopterum | Lindl. | synonym |
| Oncidium saintlegerianum | Rolfe | synonym |
| Oncidium ghillanyi | Pabst | synonym |
| Oncidium maculosum | Lindl. | synonym |
| Oncidium pectorale | Lindl. | synonym |
| Oncidium mantinii | God.-Leb. | synonym |
| Oncidium pectorale var. mantinii | (God.-Leb.) Cogn. | synonym |
| Oncidium pollettianum | Rchb.f. | synonym |
| Oncidium curtum | Lindl. | synonym |
| Oncidium larkinianum | Gower | synonym |
| Oncidium gardnerianum | T.Moore & Mast. | synonym |
| Oncidium praestans | Rchb.f. | synonym |
| Oncidium gardneri ssp. caloglossum | (Rchb.f.) Fowlie | synonym |
| Oncidium elegantissimum | Rchb.f. | synonym |
| Oncidium gardneri | Lindl. | synonym |
| Oncidium brunnipetalum | Barb.Rodr. | synonym |
| Oncidium pectorale var. larkinianum | (Gower) Cogn. | synonym |
| Oncidium gardneri var. praestans | (Rchb.f.) Cogn. | synonym |
| Oncidium wheatleyanum | Gower | synonym |
| Oncidium gardneri var. pollettianum | (Rchb.f.) Cogn. | synonym |
| Oncidium caloglossum | Rchb.f. | synonym |
| Oncidium gardneri var. elegantissimum | (Rchb.f.) Cogn. | synonym |
| Oncidium flabelliferum | Pinel | synonym |
| Oncidium pectorale var. caloglossum | (Rchb.f.) Cogn. | synonym |
| Oncidium micropogon | Rchb.f. | synonym |
| Oncidium dentatum | Klotzsch | synonym |
| Oncidium macropetalum | Klotzsch | ambiguous synonym |
| Oncidium fuscans | Rchb.f. | synonym |
| Oncidium riograndense | Cogn. | synonym |
| Oncidium cassolanum | V.P.Castro & Campacci | synonym |
| Oncidium dasytyle | Rchb.f. | synonym |
| Oncidium polyodontum | Kraenzl. | synonym |
| Oncidium damacenoi | (Chiron & V.P.Castro) Königer | synonym |
| Oncidium chrysorhapis | Rchb.f. | synonym |
| Oncidium godseffianum | Kraenzl. | synonym |
| Oncidium hecatanthum | Kraenzl. | synonym |
| Oncidium cornigerum | Lindl. | synonym |
| Oncidium fimbriatum | Lindl. | ambiguous synonym |
| Oncidium pyxidophorum | Rchb.f. | synonym |
| Oncidium ouricanense | V.P.Castro & Campacci | synonym |
| Oncidium odontochilum | Barb.Rodr. | synonym |
| Oncidium wittmannianum | Königer | synonym |
| Oncidium widgrenii | Lindl. | synonym |
| Oncidium remotiflorum | Garay | synonym |
| Oncidium truncatum | Pabst | synonym |
| Oncidium cuneatum | Scheidw. | ambiguous synonym |
| Oncidium crispum | G.Lodd. ex Lindl. | synonym |
| Oncidium crispum var. aureum | Anon. | synonym |
| Oncidium crispum var. lionetianum | Cogn. | synonym |
| Oncidium crispum var. olivaceum | Rchb.f. | synonym |
| Oncidium crispum var. flabellulatum | Stein | synonym |
| Oncidium crispum var. rodriguesii | Cogn. | synonym |
| Oncidium crispum var. sublaeve | Rchb.f. | synonym |
| Oncidium crispum var. limbatum | Cogn. | synonym |
| Oncidium imperatoris-maximiliani | Rchb.f. | synonym |
| Oncidium crispum var. ochraceum | Rchb.f. | synonym |
| Oncidium crispum var. grandiflorum | B.S.Williams | synonym |
| Oncidium gravesianum | Rolfe | synonym |
| Oncidium pubes var. flavescens | Hook. | synonym |
| Oncidium bicornutum | Hook. | synonym |
| Oncidium cruciatum | Rchb.f. | synonym |
| Oncidium gamosepalum | Königer | synonym |
| Oncidium macropetalum var. fuscopetalum | Hoehne | synonym |
| Oncidium fuscopetalum | (Hoehne) Garay & Stacy | synonym |
| Oncidium welteri | Pabst | synonym |
| Oncidium batemanianum | Parm. ex Knowles & Westc. | ambiguous synonym |
| Oncidium batemanianum var. ramosum | (Lindl.) Lindl. | synonym |
| Oncidium mandonii | Rchb.f. | synonym |
| Oncidium boliviense | Rolfe | synonym |
| Oncidium batemanii | B.S.Williams | synonym |
| Oncidium stenopetalum | Klotzsch | synonym |
| Oncidium pinellianum | Lindl. | synonym |
| Oncidium ramosum | Lindl. | synonym |
| Oncidium brachystegium | Kraenzl. | synonym |
| Oncidium gallopavinum | C.Morren | synonym |
| Oncidium paranapiacabense | Hoehne | synonym |
| Oncidium albinoi | Schltr. | synonym |
| Oncidium viperinum | Lindl. | synonym |
| Oncidium confragosum | Lindl. | synonym |
| Oncidium coloratum | Königer & J.G.Weinm.bis | synonym |
| Oncidium unicorne var. pictum | Rchb.f. | synonym |
| Oncidium rhinoceros | Rchb.f. | synonym |
| Oncidium macronyx | Rchb.f. | synonym |
| Oncidium unicorne | Lindl. | synonym |
| Oncidium longicornu var. gautieri | (Regel) Cogn. | synonym |
| Oncidium unicorne var. laetum | Rchb.f. | synonym |
| Oncidium gautieri | Regel | synonym |
| Oncidium monoceras | Hook. | synonym |
| Oncidium unicornutum | Knowles & Westc. | synonym |
| Oncidium longicornu var. grossmannii | Dammer | synonym |
| Oncidium longicornu | Mutel | synonym |
| Oncidium barbaceniae | Lindl. | synonym |
| Oncidium uliginosum | Barb.Rodr. | synonym |
| Oncidium montanum | Barb.Rodr. | synonym |
| Oncidium pabstii | Campacci & C.Espejo | synonym |
| Oncidium riviereanum | Wibier | synonym |
| Oncidium kautskyi | Pabst | synonym |
| Oncidium novaesiae | Ruschi | synonym |
| Oncidium zappii | Pabst | synonym |
| Oncidium chrysopteranthum | Lückel | synonym |
| Oncidium micropogon var. chrysopterum | Rchb.f. | synonym |
| Oncidium disciferum | Lindl. | synonym |
| Oncidium venustum | Drapiez | synonym |
| Oncidium galeatum | Scheidw. | synonym |
| Oncidium dimorphum | Regel | synonym |
| Oncidium rhynchophorum | Schltr. ex Hoehne | synonym |
| Oncidium ornithocephaloides | Kraenzl. | synonym |
| Oncidium trulliferum | Lindl. | synonym |
| Oncidium hookeri var. albescens | Pabst | synonym |
| Oncidium hookeri f. albescens | (Pabst) F.Barros & J.A.N.Bat. | synonym |
| Oncidium raniferum var. majus | Hook. | synonym |
| Oncidium raniferum | Lindl. | synonym |
| Oncidium veltenianum | (V.P.Castro & Chiron) Königer | synonym |
| Oncidium euxanthinum | Rchb.f. | synonym |
| Oncidium varicosum | Lindl. | synonym |
| Oncidium varicosum var. rogersii | (Bateman) Rchb.f. | synonym |
| Oncidium geraense | Barb.Rodr. | synonym |
| Oncidium varicosum var. charlesworthii | Anon. | synonym |
| Oncidium varicosum var. concolor | Cogn. | synonym |
| Oncidium varicosum var. southorangense | Grey | synonym |
| Oncidium varicosum var. vexillarium | Rchb.f. ex Kraenzl. | synonym |
| Oncidium lunaeanum | Paxton & Lindl. | synonym |
| Oncidium vexillarium | (Rchb.f. ex Kraenzl.) Königer | synonym |
| Oncidium rogersii | Bateman | synonym |
| Oncidium varicosum var. lindenii | Mast. | synonym |
| Oncidium silvanum | V.P.Castro & Campacci | synonym |
| Oncidium forbesii | Hook. | synonym |
| Oncidium concolor | Hook. | synonym |
| Oncidium unguiculatum | Klotzsch | ambiguous synonym |
| Oncidium normanii | Pritz. | synonym |
| Oncidium edmundoi | Pabst | synonym |
| Oncidium flexuosum | G.Lodd. | ambiguous synonym |
| Oncidium flexuosum var. radiatum | Rchb.f. | synonym |
| Oncidium megalopterum | Kraenzl. | synonym |
| Oncidium haematochrysum | Rchb.f. | synonym |
| Oncidium isopterum | Lindl. | synonym |
| Oncidium haematoxanthum | Rchb.f. ex Lindl. | synonym |
| Oncidium lietzei var. bicolor | Regel | synonym |
| Oncidium hrubyanum | Rchb.f. | synonym |
| Oncidium lietzei var. aureomaculatum | Regel | synonym |
| Oncidium lietzei | Regel | synonym |
| Oncidium caldense | Rchb.f. | synonym |
| Oncidium longipes | Lindl. | synonym |
| Oncidium unicolor | Rolfe | synonym |
| Oncidium janeirense | Rchb.f. | synonym |
| Oncidium eurycline | Rchb.f. | synonym |
| Oncidium hassleri | Cogn. | synonym |
| Oncidium oxyacanthosmum | Lem. ex F.Buyss. | synonym |
| Oncidium monophyllum | (Regel) Herter | synonym |
| Oncidium longipes var. monophyllum | Regel | synonym |
| Oncidium sarcodes | Lindl. | synonym |
| Oncidium rigbyanum | Paxton | synonym |
| Oncidium nitidum | Barb.Rodr. | synonym |
| Oncidium mazzinii | Hoehne | synonym |
| Oncidium fragae | Königer | synonym |
| Oncidium herzogii | Schltr. | synonym |
| Oncidium spegazzinianum | (Kraenzl.) Schltr. | synonym |
| Oncidium brienianum var. rufida-maculis | Rchb.f. | synonym |
| Oncidium brienianum | Rchb.f. | synonym |
| Oncidium brienianum var. sulphureum | Rchb.f. | synonym |
| Oncidium verrucosissimum | Cogn. | synonym |
| Oncidium adamantinum | Marçal & Cath. | synonym |
| Oncidium gutfreundianum | Chiron & V.P.Castro | synonym |
| Oncidium leinigii | Pabst | synonym |
| Oncidium mirabile | Rchb.f. | synonym |
| Oncidium insleayi | Baker ex Lindl. | synonym |
| Oncidium ampliatum-majus | F.Buyss. | synonym |
| Oncidium gyrobulbon | Rchb.f. | synonym |
| Oncidium ampliatum | Lindl. | synonym |
| Oncidium ampliatum var. majus | Van Houtte | synonym |
| Oncidium bernoullianum | Kraenzl. | synonym |
| Oncidium candidum | Lindl. | ambiguous synonym |
| Oncidium egertonii | (Lindl.) Beer | synonym |
| Oncidium galeottianum | Drapiez | ambiguous synonym |
| Oncidium citrosmum | (Lindl.) Beer | synonym |
| Oncidium excavatum var. aurosum | (Rchb.f. & Warsz.) Lindl. | synonym |
| Oncidium rupestre | Lindl. | synonym |
| Oncidium skinneri | Lindl. | synonym |
| Oncidium excavatum | Lindl. | synonym |
| Oncidium boissieri | Kraenzl. | synonym |
| Oncidium rupestre var. skinneri | (Lindl.) Lindl. | synonym |
| Oncidium excavatum var. dawsonii | F.Buyss. | synonym |
| Oncidium aurosum | Rchb.f. & Warsz. | synonym |
| Oncidium lucasianum | Rolfe | synonym |
| Oncidium vasquezii | Christenson | synonym |
| Oncidium foveatum | Lindl. | synonym |
| Oncidium oxystegium | Kraenzl. | synonym |
| Oncidium aurorae | D.E.Benn. & Christenson | synonym |
| Oncidium auriferum | Rchb.f. | synonym |
| Oncidium callistum | Rchb.f. ex Kraenzl. | synonym |
| Oncidium armillare | Lindl. | synonym |
| Oncidium superfluum | Rchb.f. | synonym |
| Oncidium sanderianum | Rolfe | synonym |
| Oncidium rigidum | (Lindl.) Beer | synonym |
| Oncidium plicigerum | Rchb.f. | synonym |
| Oncidium davisii | Rchb.f. | synonym |
| Oncidium pastorellii | Dodson & D.E.Benn. | synonym |
| Oncidium cordatum | Lindl. | synonym |
| Oncidium volubile | (Poepp. & Endl.) Cogn. | synonym |
| Oncidium corynephorum | Lindl. | synonym |
| Oncidium falcipetalum | Lindl. | synonym |
| Oncidium falcipetalum var. pavonii | Rchb.f. ex Lindl. | synonym |
| Oncidium meirax | Rchb.f. | synonym |
| Oncidium dodianum | Ackerman & Chiron | synonym |
| Oncidium alatum | Cogn. | synonym |
| Oncidium lucescens | Rchb.f. | synonym |
| Oncidium annulare | Rchb.f. | synonym |
| Oncidium monachicum | Rchb.f. | synonym |
| Oncidium macrum | (Lindl.) Beer | synonym |
| Oncidium densiflorum | (Lindl.) Beer | ambiguous synonym |
| Oncidium ramulosum | (Lindl.) Beer | synonym |
| Oncidium mendax | Rchb.f. | synonym |
| Oncidium ballii | Rolfe | synonym |
| Oncidium metallicum | Rchb.f. | synonym |
| Oncidium carderi | Rchb.f. | synonym |
| Oncidium ventilabrum | Rchb.f. & Warsz. | synonym |
| Oncidium undulatum | Lindl. | ambiguous synonym |
| Oncidium cryptocopis | Rchb.f. | synonym |
| Oncidium trulla | Rchb.f. & Warsz. | synonym |
| Oncidium micranthum | Skinner ex Lindl. | ambiguous synonym |
| Oncidium hartwegii | Lindl. | synonym |
| Oncidium flexuosum | (Kunth) Lindl. | ambiguous synonym |
| Oncidium cocciferum | Rchb.f. & Warsz. | synonym |
| Oncidium hartwegii var. parviflorum | Rchb.f. | synonym |
| Oncidium aemulum | Rchb.f. & Warsz. | synonym |
| Oncidium microxiphium | Rchb.f. | synonym |
| Oncidium linguiforme | Lindl. | synonym |
| Oncidium simulans | (Schltr.) Garay | synonym |
| Oncidium tucumanense | Rchb.f. | synonym |
| Oncidium pseudomelanthes | (D.E.Benn. & Christenson) M.W.Chase & N.H.Williams | synonym |
| Oncidium mandibulare | Linden & Rchb.f. | synonym |
| Oncidium refractum | Rchb.f. | synonym |
| Oncidium costatum | (Lindl.) Beer | synonym |
| Oncidium divaricatum | (Lindl.) Beer | ambiguous synonym |
| Oncidium ramosissimum | (Lindl.) Beer | synonym |
| Oncidium detortum | Rchb.f. | synonym |
| Oncidium chrysodipterum var. claesianum | Cogn. | synonym |
| Oncidium tetracopis | Rchb.f. | synonym |
| Oncidium ludens | Rchb.f. | synonym |
| Oncidium chrysodipterum | A.H.Kent | synonym |
| Oncidium engelii | Rchb.f. | synonym |
| Oncidium zebrinum | (Rchb.f.) Rchb.f. | synonym |
| Oncidium insculptum | Rchb.f. | synonym |
| Oncidium loxense | Lindl. | synonym |
| Oncidium dichroneura | Rolfe | synonym |
| Oncidium hemichrysum | (Rchb.f. & Warsz.) Rchb.f. | synonym |
| Oncidium aureum | Lindl. | synonym |
| Oncidium aureum var. stenochilum | Lindl. | synonym |
| Oncidium festatum | Rchb.f. | synonym |
| Oncidium bicolor | (Lindl.) Beer | ambiguous synonym |
| Oncidium dichromum | Rolfe | synonym |
| Oncidium leopoldianum | Rolfe | synonym |
| Oncidium leopoldii | God.-Leb. | synonym |
| Oncidium incarum | (Kraenzl.) C.Schweinf. | synonym |
| Oncidium dunstervilleorum | Foldats | synonym |
| Oncidium umbrosum | (Rchb.f.) Rchb.f. | synonym |
| Oncidium brachypterum | Linden & Rchb.f. | synonym |
| Oncidium ovatilabium | C.Schweinf. | synonym |
| Oncidium tricostatum | (Kraenzl.) Garay | synonym |
| Oncidium exasperatoides | D.E.Benn. & Christenson | synonym |
| Oncidium polystachyoides | F.Lehm. & Kraenzl. | synonym |
| Oncidium orgyale | Rchb.f. & Warsz. | synonym |
| Oncidium claesii | Rolfe | synonym |
| Oncidium saltabundum | Rchb.f. | synonym |
| Oncidium porrigens | Rchb.f. | synonym |
| Oncidium rotundatum | Rchb.f. | synonym |
| Oncidium halteratum | Lindl. | synonym |
| Oncidium superbiens | Rchb.f. | synonym |
| Oncidium halteratum var. luteum | Lindl. | synonym |
| Oncidium inferlobum | T.Moore & Mast. | synonym |
| Oncidium halteratum var. fuscum | Lindl. | synonym |
| Oncidium mentigerum | (Rchb.f. & Warsz.) Lindl. | synonym |
| Oncidium mystacinum | (Lindl.) Beer | synonym |
| Oncidium tenense | Rchb.f. & Warsz. | synonym |
| Oncidium cochleatum | Lindl. | synonym |
| Oncidium serratum | Lindl. | synonym |
| Oncidium diadema | Linden | synonym |
| Oncidium ionodon | Rchb.f. | synonym |
| Oncidium fractiflexum | F.Lehm. & Kraenzl. | synonym |
| Oncidium pardinum | (Lindl.) Beer | synonym |
| Oncidium spathaceum | (Lindl.) Beer | ambiguous synonym |
| Oncidium gracile | (Lindl.) Beer | ambiguous synonym |
| Oncidium megalophium | (Lindl.) Beer | synonym |
| Oncidium forcipatum | (Linden & Rchb.f.) Schnee | synonym |
| Oncidium pastasae | Rchb.f. | synonym |
| Oncidium lamelligerum | Rchb.f. | synonym |
| Oncidium odontopterygium | Rchb.f. ex Kraenzl. | synonym |
| Oncidium methonica | Rchb.f. | synonym |
| Oncidium examinans | Lindl. | synonym |
| Oncidium centifrancum | Rchb.f. | synonym |
| Oncidium auropurpureum | (Rchb.f.) Beer | synonym |
| Oncidium gyriferum | Rchb.f. | synonym |
| Oncidium pavonii | Rchb.f. & Warsz. ex Lindl. | synonym |
| Oncidium funis | F.Lehm. & Kraenzl. | synonym |
| Oncidium miradorense | D.E.Benn. & Christenson | synonym |
| Oncidium cimiciferum | (Rchb.f.) Beer | synonym |
| Oncidium macropus | Linden & Rchb.f. | synonym |
| Oncidium rusbyi | Rolfe | synonym |
| Oncidium cimiferum | Rchb.f. ex Linden | synonym |
| Oncidium distans | (Rchb.f.) Beer | synonym |
| Oncidium plagianthum | Rchb.f. | synonym |
| Oncidium phylloglossum | Rchb.f. | synonym |
| Oncidium xanthodon | Rchb.f. | synonym |
| Oncidium rusticum | Linden & Rchb.f. | synonym |
| Oncidium diodon | Rchb.f. | synonym |
| Oncidium sodiroi | Schltr. | synonym |
| Oncidium werneri | Schltr. | synonym |
| Oncidium macasense | Dodson | synonym |
| Oncidium santiagorum | Königer | synonym |
| Oncidium diceratum | Lindl. | synonym |
| Oncidium fallens | Rchb.f. | synonym |
| Oncidium trilingue | Lindl. | synonym |
| Oncidium kienastianum | Rchb.f. | synonym |
| Oncidium rolfeanum | Sander | synonym |
| Oncidium exasperatum | Linden & Rchb.f. | synonym |
| Oncidium dipterum | (Lindl.) Beer | synonym |
| Oncidium macranthum var. hastiferum | (Rchb.f. & Warsz.) C.Schweinf. | synonym |
| Oncidium hastiferum | Rchb.f. & Warsz. | synonym |
| Oncidium macranthum | Lindl. | synonym |
| Oncidium trifurcatum | Lindl. | synonym |
| Oncidium rubrocallosum | (D.E.Benn. & Christenson) M.W.Chase & N.H.Williams | synonym |
| Oncidium williamsianum | Dodson | synonym |
| Oncidium bismarckii | D.E.Benn. & Christenson | synonym |
| Oncidium gargantua | Rchb.f. | synonym |
| Oncidium minax | Rchb.f. | synonym |
| Oncidium turpe | Kraenzl. | synonym |
| Oncidium brachystachys | Kraenzl. | synonym |
| Oncidium murinum | Rchb.f. | synonym |
| Oncidium retusum | (Lindl.) Beer | ambiguous synonym |
| Oncidium umbonatum | Rchb.f. | synonym |
| Oncidium grandiflorum | Rchb.f. | synonym |
| Oncidium revolutum | (Lindl.) Beer | synonym |
| Oncidium steyermarkii | Foldats | synonym |
| Oncidium englerianum | Kraenzl. | synonym |
| Oncidium ustulatum | Rchb.f. | synonym |
| Oncidium rostratum | (Schltr.) Garay | synonym |
| Oncidium ixioides | (Lindl.) Beer | synonym |
| Oncidium miserrimum | Rchb.f. | synonym |
| Oncidium baldeviamae | Rchb.f. | synonym |
| Oncidium kramerianum var. resplendens | Rchb.f. | synonym |
| Oncidium nodosum | É.Morren | synonym |
| Oncidium kramerianum | Rchb.f. | synonym |
| Oncidium krameri | J.Muir | synonym |
| Oncidium papilioniforme | Regel | synonym |
| Oncidium sanderae | Rolfe | synonym |
| Oncidium papilio | Lindl. | synonym |
| Oncidium papilio var. albiflorum | Rchb.f. ex Lindl. | synonym |
| Oncidium papilio var. latourae | Broadway | synonym |
| Oncidium papilio f. latourae | (Broadway) A.D.Hawkes | synonym |
| Oncidium papilio var. majus | F.Buyss. | synonym |
| Oncidium palilionaceum | Philippar | synonym |
| Oncidium papilio var. limbatum | Hook. | synonym |
| Oncidium versteegianum | Pulle | synonym |
| Oncidium schunkeanum | Campacci & Cath. | synonym |
| Oncidium auricula | (Vell.) Pabst | synonym |
| Oncidium pantherinum | Hoffmanns. | synonym |
| Oncidium ramiferum | Klotzsch | synonym |
| Oncidium harrisonianum var. pallidum | Rchb.f. | synonym |
| Oncidium harrisoniae | G.Lodd. ex Drapiez | synonym |
| Oncidium harrisonianum | Lindl. | synonym |
| Oncidium pallidum | Lindl. | synonym |
| Oncidium pentaspilum | Hoffmanns. | synonym |
| Oncidium acrobotryum | Klotzsch | synonym |
| Oncidium micranthum | (Kraenzl.) Mottet | ambiguous synonym |
| Oncidium kraenzlinianum | Cogn. | synonym |
| Oncidium edwallii | Cogn. | synonym |
| Oncidium aberrans | Schltr. | synonym |
| Oncidium maxilligerum | Lem. | synonym |
| Oncidium quadricorne | Klotzsch | synonym |
| Oncidium leucostomum | Hoffmanns. | synonym |
| Oncidium hians | Lindl. | synonym |
| Oncidium pohlianum | Cogn. | synonym |
| Oncidium divaricatum var. cupreum | Lindl. | synonym |
| Oncidium sciurus | Scheidw. | synonym |
| Oncidium divaricatum | Lindl. | ambiguous synonym |
| Oncidium robustissimum | Rchb.f. | synonym |
| Oncidium pulvinatum | Lindl. | synonym |
| Oncidium sphegiferum | Lindl. | synonym |
| Oncidium pulvinatum var. majus | B.S.Williams | synonym |
| Oncidium pulvinatum var. minarum | Hoehne & Schltr. | synonym |
| Oncidium pulvinatum var. grandiflorum | Regel | synonym |
| Oncidium candidum | (Lindl.) Rchb.f. | ambiguous synonym |
| Oncidium spectabile | (Lindl.) Beer | synonym |
| Oncidium clowesii | (Lindl.) Rchb.f. | synonym |
| Oncidium phymatochilum | Lindl. | synonym |
| Oncidium regnellii | (Rchb.f.) Rchb.f. | synonym |
| Oncidium russellianum var. pallidum | Regel | synonym |
| Oncidium russellianum | Lindl. | synonym |
| Oncidium anceps | (Klotzsch) Rchb.f. | ambiguous synonym |
| Oncidium flavescens | (Lindl.) Rchb.f. | synonym |
| Oncidium flavescens var. stellatum | (Lindl.) Rchb.f. | synonym |
| Oncidium stellatum | (Lindl.) Beer | synonym |
| Oncidium speciosum | (Klotzsch) Rchb.f. | synonym |
| Oncidium emarginatum | G.Mey. | synonym |
| Oncidium constrictum f. castaneum | (Rchb.f.) J.M.H.Shaw | synonym |
| Oncidium boddaertianum | (Rchb.f.) M.W.Chase & N.H.Williams | synonym |
| Oncidium constrictum f. pallens | (Rchb.f.) J.M.H.Shaw | synonym |
| Oncidium castaneum | Rchb.f. ex Kraenzl. | synonym |
| Oncidium cabagrae | Schltr. | synonym |
| Oncidium rechingerianum | Kraenzl. | synonym |
| Oncidium andreae | Königer | synonym |
| Oncidium rariflorum | A.Rich. & Galeotti | synonym |
| Oncidium portmannii ssp. cohrsiae | (Bockemühl) M.W.Chase & N.H.Williams | accepted |
| Oncidium portmannii ssp. portmannii | accepted | |
| Oncidium ornithorhynchum var. album | J.Fraser | synonym |
| Oncidium maderoi | Schltr. | synonym |
| Oncidium pyramidale | Lindl. | synonym |
| Oncidium chrysopyramis | Rchb.f. & Warsz. | synonym |
| Oncidium wydleri | Rchb.f. | synonym |
| Oncidium forkelii | Scheidw. | synonym |
| Oncidium hannelorae | Nir | synonym |
| Oncidium rhombicallum | (D.E.Benn. & Christenson) M.W.Chase & N.H.Williams | synonym |
| Oncidium citrinum var. verum | Regel | synonym |
| Oncidium hagsaterianum | R.Jiménez & Soto Arenas | synonym |
| Oncidium gloriosum var. flaviflorum | (Bockemühl) M.W.Chase & N.H.Williams | synonym |
| Oncidium pittieri | Schltr. | synonym |
| Oncidium cheirophoroides | Kraenzl. | synonym |
| Oncidium tigrinum var. unguiculatum | (Lindl.) Lindl. | synonym |
| Oncidium diffusum | C.Schweinf. | synonym |
| Oncidium bifrons | Lindl. | synonym |
| Oncidium platybulbon | Regel | synonym |
| Oncidium leucotis | Rchb.f. | synonym |
| Oncidium dasyanthum | Kraenzl. | synonym |
| Oncidium xanthochlorum | Klotzsch | synonym |
| Oncidium caesium | Rchb.f. | synonym |
| Oncidium dielsianum | Kraenzl. | synonym |
| Oncidium exauriculatum | (Hamer & Garay) R.Jiménez | synonym |
| Oncidium cheirophorum var. exauriculatum | Hamer & Garay | synonym |
| Oncidium macrorhynchum | Kraenzl. | synonym |
| Oncidium sceptrum var. facetum | (Rchb.f.) J.M.H.Shaw | accepted |
| Oncidium sceptrum var. sceptrum | accepted | |
| Oncidium sotoanum ssp. sotoanum | accepted | |
| Oncidium sotoanum ssp. papalosmum | R.Jiménez | accepted |
| Oncidium pardalis | Rchb.f. | synonym |
| Oncidium citrinum var. rotundatum | Regel | synonym |
| Oncidium calobulbon | Linden & Rchb.f. | synonym |
| Oncidium aloisii | Schltr. | synonym |
| Oncidium hirundo | Rchb.f. | synonym |
| Oncidium bidentatum | Rolfe | synonym |
| Oncidium pardothyrsus | Rchb.f. & Warsz. | synonym |
| Oncidium subobscurum | Kraenzl. | synonym |
| Oncidium roseum | (Lindl.) Beer | ambiguous synonym |
| Oncidium weltonii | (Rchb.f.) Rollisson | synonym |
| Oncidium pluviaflorum | Kraenzl. | synonym |
| Oncidium alcicorne | Rchb.f. | synonym |
| Oncidium chrysornis | Rchb.f. | synonym |
| Oncidium xanthocentron | Rchb.f. | synonym |
| Oncidium huebschii | Rchb.f. | synonym |
| Oncidium melanops | Rchb.f. | synonym |
| Oncidium gracillimum | Rolfe | ambiguous synonym |
| Oncidium elephantotis | Rchb.f. | synonym |
| Oncidium santanderianum | Kraenzl. | synonym |
| Oncidium ochthodes | Rchb.f. | synonym |
| Oncidium rostrans | Rchb.f. | synonym |
| Oncidium erucatum | Königer | synonym |
| Oncidium kalbreyerianum | Kraenzl. | synonym |
| Oncidium falcicorne | Kraenzl. | synonym |
| Oncidium hapalotyle f. kalbreyerianum | (Kraenzl.) Roeth | synonym |
| Oncidium anomalum | Rchb.f. | synonym |
| Oncidium bilamellatum | Kraenzl. | synonym |
| Oncidium peruvianoides | M.W.Chase & N.H.Williams | synonym |
| Oncidium brevifolium | A.Rich. & Galeotti | synonym |
| Oncidium anfractum | Rolfe | synonym |
| Oncidium reichenbachii | Lindl. | synonym |
| Oncidium henrici-gustavi | Kraenzl. | synonym |
| Oncidium paleatum | Schltr. | synonym |
| Oncidium scabripes | Kraenzl. | synonym |
| Oncidium guttulatum | Rchb.f. ex Lindl. | synonym |
| Oncidium tonduzii | Schltr. | synonym |
| Oncidium costaricense | Schltr. | synonym |
| Oncidium vierlingii | Königer | ambiguous synonym |
| Oncidium platyglossum | Rchb.f. ex Linden | synonym |
| Oncidium buchtienii | Schltr. | synonym |
| Oncidium multiflorum | Soysa | synonym |
| Oncidium bicameratum | Rchb.f. ex Kraenzl. | synonym |
| Oncidium altissimum var. baueri | (Lindl.) Stein | synonym |
| Oncidium advena | Rchb.f. | synonym |
| Oncidium altissimum | Lindl. | ambiguous synonym |
| Oncidium peliogramma | Linden & Rchb.f. | synonym |
| Oncidium bolivianum | Schltr. | synonym |
| Oncidium pentecostale | Rchb.f. | synonym |
| Oncidium schmidtianum | Rchb.f. | synonym |
| Oncidium kappleri | Rchb.f. ex Lindl. | synonym |
| Oncidium hebraicum | Rchb.f. | synonym |
| Oncidium hastatum var. atratum | Lindl. | synonym |
| Oncidium hastatum var. flavescens | Lindl. | synonym |
| Oncidium phyllochilum | (C.Morren) Beer | synonym |
| Oncidium stelligerum var. ernestii | B.S.Williams | synonym |
| Oncidium hastatum var. hemimelaenum | Rchb.f. | synonym |
| Oncidium jurgensenianum | (Lem.) Lem. | synonym |
| Oncidium hastatum var. roezlii | Rchb.f. | synonym |
| Oncidium subcruciforme | (A.H.Heller) Garay & Stacy | synonym |
| Oncidium maculatum var. parviflorum | (Lindl.) Lindl. | synonym |
| Oncidium maculatum var. lindleyi | Galeotti ex Lindl. | synonym |
| Oncidium maculatum var. vinosum | Lindl. | synonym |
| Oncidium maculatum var. donianum | Rchb.f. | synonym |
| Oncidium lindleyi | (Galeotti ex Lindl.) R.Jiménez & Soto Arenas | synonym |
| Oncidium ototmeton | Kraenzl. | synonym |
| Oncidium crocidipterum ssp. dormanianum | (Rchb.f.) M.W.Chase & N.H.Williams | synonym |
| Oncidium hirtzii | Dodson | synonym |
| Oncidium cuencanum | Rchb.f. | synonym |
| Oncidium jamiesonii | Lindl. | synonym |
| Oncidium formosissimum | Rchb.f. | synonym |
| Oncidium powellii | Schltr. | synonym |
| Oncidium nobile f. leucoxanthum | (Rchb.f.) J.M.H.Shaw | synonym |
| Oncidium pescatorei | (Linden ex Perot) Beer | synonym |
| Oncidium nobile f. veitchianum | (Rchb.f.) J.M.H.Shaw | synonym |
| Oncidium isidrense | Chiron | synonym |
| Oncidium praestanoides var. usemannii | (Roeth) J.M.H.Shaw | synonym |
| Oncidium wentworthianum var. tenue | (Lindl.) Ames & Correll | synonym |
| Oncidium tenue | Lindl. | ambiguous synonym |
| Oncidium helgae | (Königer) M.W.Chase & N.H.Williams | ambiguous synonym |
| Oncidium alexandrae f. hyperxanthum | (Rchb.f.) J.M.H.Shaw | synonym |
| Oncidium johnsonorum | L.O.Williams | synonym |
| Oncidium funereum | Lex. | ambiguous synonym |
| Oncidium tigrinum | Lindl. | misapplied |
| Oncidium maculatum var. psittacinum | Rchb.f. ex Lindl. | synonym |
| Oncidium psittacinum | Linden ex Lindl. | synonym |
| Oncidium lintriculus | Kraenzl. | synonym |
| Oncidium sawyeri | L.O.Williams | synonym |
| Oncidium victor | (Rchb.f.) J.M.H.Shaw | synonym |
| Oncidium semele | Linden ex Rchb.f. | synonym |
| Oncidium cheiri | Rchb.f. ex Kraenzl. | synonym |
| Oncidium cycnicolle | Rchb.f. ex Kraenzl. | synonym |
| Oncidium virgulatum | Rchb.f. | synonym |
| Oncidium oloricolle | Rchb.f. | synonym |
| Oncidium ligiae | (Königer & R.Escobar) M.W.Chase & N.H.Williams | ambiguous synonym |
| Oncidium turialbae | Schltr. | synonym |
| Oncidium stenotis | Rchb.f. | synonym |
| Oncidium schrautianum | Königer | synonym |
| Oncidium sphacelatum f. xanthinum | Roeth & O.Gruss | synonym |
| Oncidium sphacelatum var. minus | Lindl. | synonym |
| Oncidium stenostalix | Rchb.f. ex Kraenzl. | synonym |
| Oncidium sphacelatum var. majus | Lindl. | synonym |
| Oncidium swartzii | Chiron & Braem | synonym |
| Oncidium jacquinianum | Garay & Stacy | synonym |
| Oncidium spectatissimum var. cinctum | (Rchb.f.) J.M.H.Shaw | synonym |
| Oncidium barkeri | Lindl. | synonym |
| Oncidium tigrinum var. giganteum | Lex. | synonym |
| Oncidium unguitigrinum | A.V.Navarro | synonym |
| Oncidium ionosmum | Lindl. | synonym |
| Oncidium tigrinum var. albens | Rchb.f. | synonym |
| Oncidium tigrinum var. elatum | Lex. | synonym |
| Oncidium guatemalense | Schltr. | synonym |
| Oncidium fasciculatum | Hágsater | synonym |
| Oncidium adelaidae | (Königer) M.W.Chase & N.H.Williams | ambiguous synonym |
| Oncidium warneri var. sordidum | (Lindl.) Lindl. | synonym |
| Oncidium warneri var. purpuratum | (Lindl.) Lindl. | synonym |
| Oncidium warneri | (Lindl.) Lindl. | synonym |
| Oncidium uaipanense | Schnee | synonym |
| Oncidium beyrodtioides | M.W.Chase & N.H.Williams | synonym |
| Oncidium densiflorum | (Lindl.) M.W.Chase & N.H.Williams | ambiguous synonym |
| Oncidium floryi | (Rolfe) M.W.Chase & N.H.Williams | synonym |
| Oncidium miniatum | (L.Linden) M.W.Chase & N.H.Williams | synonym |
| Oncidium andinum | Molinari | synonym |
| Oncidium zonatum | Cogn. | synonym |
| Oncidium digitatum | Lindl. | synonym |
| Oncidium leucochilum var. digitatum | (Lindl.) Lindl. | synonym |
| Oncidium leucochilum var. dawsonianum | Rchb.f. | synonym |
| Oncidium leucochilum f. speciosum | Regel | synonym |
| Oncidium polychromum | Scheidw. | synonym |
| Oncidium lehmannii f. argus | (Rchb.f.) J.M.H.Shaw | synonym |
| Oncidium lehmannii f. dayanum | (Rchb.f.) J.M.H.Shaw | synonym |
| Oncidium lehmannii f. canaria | (Rchb.f.) J.M.H.Shaw | synonym |
| Oncidium suttonii | Bateman ex Lindl. | synonym |
| Oncidium pelicanum | Lindl. | synonym |
| Oncidium suave | Lindl. | synonym |
| Oncidium durangense | Hágsater | synonym |
| Oncidium macropterum | A.Rich. & Galeotti | synonym |
| Oncidium funereum | Lindl. | ambiguous synonym |
| Oncidium acrochordonia | Rchb.f. ex Kraenzl. | synonym |
| Oncidium wendlandianum | Rchb.f. | synonym |
| Oncidium reflexum var. caesium | John Edwards | synonym |
| Oncidium tayleurii | Lindl. | synonym |
| Oncidium reflexum var. intermedium | Regel | synonym |
| Oncidium liebmannii | Rchb.f. ex Kraenzl. | synonym |
| Oncidium uncia | Rchb.f. ex Kraenzl. | synonym |
| Oncidium incurvum f. album | (Linden) Christenson | synonym |
| Oncidium incurvum var. album | Linden | synonym |
| Oncidium alboviolaceum | A.Rich. & Galeotti | synonym |
| Oncidium sclerophyllum | Kraenzl. | synonym |
| Oncidium meliosmum | Rchb.f. | synonym |
| Oncidium hoppii | Schltr. | synonym |
| Oncidium fulgens | Schltr. | synonym |
| Oncidium angustisepalum | Kraenzl. | synonym |
| Oncidium culex | Königer | synonym |
| Oncidium graciliforme | C.Schweinf. | synonym |
| Oncidium microcachrys | Rchb.f. ex Kraenzl. | synonym |
| Oncidium varians | Schltr. | synonym |
| Oncidium klotzschianum | Rchb.f. | synonym |
| Oncidium confusum | Rchb.f. | synonym |
| Oncidium cerebriferum | Rchb.f. | synonym |
| Oncidium floridanum | Ames | synonym |
| Oncidium trilobum | (Schltr.) Garay & Stacy | synonym |
| Oncidium guatemalenoides | M.W.Chase & N.H.Williams | synonym |
| Oncidium pictoides | M.W.Chase & N.H.Williams | synonym |
| Oncidium cruentoides f. hrubyanum | (Rchb.f.) J.M.H.Shaw | synonym |
| Oncidium hrubyatoides | M.W.Chase & N.H.Williams | synonym |
| Oncidium obryzatum var. dasystalix | Rchb.f. | synonym |
| Oncidium tetraskelidion | Kraenzl. | synonym |
| Oncidium brenesii | Schltr. | synonym |
| Oncidium floribundum | Rchb.f. ex Kraenzl. | synonym |
| Oncidium drepanopterum | Kraenzl. | synonym |
| Oncidium calyptostalix | Kraenzl. | synonym |
| Oncidium hedyosmum | Schltr. | synonym |
| Oncidium harryanum f. flavescens | (Rolfe) J.M.H.Shaw | synonym |
| Oncidium graminifolium var. filipes | (Lindl.) Lindl. | synonym |
| Oncidium filipes | (Lindl.) Lindl. | synonym |
| Oncidium wrayae | Hook. | synonym |
| Oncidium graminifolium var. holochilum | Lindl. | synonym |
| Oncidium graminifolium var. wrayae | (Hook.) Lindl. | synonym |
| Oncidium reichenbachianum | (Kraenzl.) M.W.Chase & N.H.Williams | synonym |
| Oncidium millei | Schltr. | synonym |
| Oncidium aspecum | Königer | synonym |
| Oncidium ariasii | (Königer) M.W.Chase & N.H.Williams | ambiguous synonym |
| Oncidium microphyton | Kraenzl. | synonym |
| Oncidium megalous | Schltr. | synonym |
| Oncidium inops | Cogn. & Rolfe | synonym |
| Oncidium asparagoides | Kraenzl. | synonym |
| Oncidium tenue var. grandiflorum | Lindl. | synonym |
| Oncidium lankesteri | Ames | synonym |
| Oncidium delumbe | Lindl. | synonym |
| Oncidium naranjense | Schltr. | synonym |
| Oncidium tenue | Lindl. | ambiguous synonym |
| Oncidium lindleyoides var. parviflorum | (Bockemühl) J.M.H.Shaw | synonym |
| Oncidium pollardii | Dodson & Hágsater | synonym |
| Oncidium volvox | Rchb.f. | synonym |
| Oncidium schlimii | Linden ex Lindl. & Paxton | synonym |
| Oncidium cristatum | Rolfe | ambiguous synonym |
| Oncidium brachyandrum var. johannis | (Schltr.) L.O.Williams | synonym |
| Oncidium johannis | Schltr. | synonym |
| Oncidium macrantherum | Hook. | synonym |
| Oncidium salvum | Rchb.f. | synonym |
| Oncidium lansbergii | Rchb.f. | synonym |
| Oncidium depauperatum | F.Lehm. & Kraenzl. | synonym |
| Oncidium labiatum | (Sw.) Rchb.f. | synonym |
| Oncidium crocodiliceps | Rchb.f. | synonym |
| Oncidium carinatum | Knowles & Westc. | synonym |
| Oncidium tricuspidatum | Rchb.f. | synonym |
| Oncidium herbaceum | (Lindl.) Rchb.f. | synonym |
| Oncidium scriptum | (Scheidw.) Rchb.f. | synonym |
| Oncidium panduriforme | Ames & C.Schweinf. | synonym |
| Oncidium riopalenqueanum | Dodson | synonym |
| Oncidium helgae | Königer | ambiguous synonym |
| Oncidium chelidonizon | Kraenzl. | synonym |
| Oncidium cardiochilum | Lindl. | synonym |
| Oncidium ochmatochilum | Rchb.f. | synonym |
| Oncidium chelidon | Kraenzl. | synonym |
| Oncidium obovatum | C.Presl | synonym |
| Oncidium elegans | (Ham.) Beer | synonym |
| Oncidium lunatum | Lindl. | synonym |
| Oncidium racemosum | (Lindl.) Rchb.f. | synonym |
| Oncidium cervantesii | (Lex.) Beer | synonym |
| Oncidium erosum | (A.Rich. & Galeotti) Beer | synonym |
| Oncidium maxillare | (Lindl.) Beer | synonym |
| Oncidium rossii | Beer | synonym |
| Oncidium apterum | (Lex.) Beer | synonym |
| Oncidium anceps | Beer | ambiguous synonym |
| Oncidium maculatum | (Lex.) Beer | ambiguous synonym |
| Oncidium pygmaeum | (Lindl.) Beer | synonym |
| Oncidium caerulescens | (A.Rich. & Galeotti) Beer | synonym |
| Oncidium ehrenbergii | (Link, Klotzsch & Otto) Beer | synonym |
| Oncidium galeottianum | (A.Rich.) Beer | ambiguous synonym |
| Oncidium spathaceum | Rchb.f. | ambiguous synonym |
| Oncidium ocanense | (Lindl.) Rchb.f. | synonym |
| Oncidium helenae | Rchb.f. | synonym |
| Oncidium gireaudianum | (Rchb.f. & Warsz.) Rchb.f. | synonym |
| Oncidium imbricatum | (Lindl.) Rchb.f. | synonym |
| Oncidium glumaceum | (Lindl.) Rchb.f. | synonym |
| Oncidium suaveolens | Rchb.f. | synonym |
| Oncidium josstianum | (Rchb.f.) Rchb.f. | synonym |
| Oncidium brachiatum | (Lindl.) Rchb.f. | synonym |
| Oncidium verrucosum | (Bateman ex Lindl.) Rchb.f. | synonym |
| Oncidium euodes | (Rchb.f.) Rchb.f. | synonym |
| Oncidium peruvianum | (Poepp. & Endl.) Rchb.f. | synonym |
| Oncidium caudatum | (L.) Rchb.f. | synonym |
| Oncidium suaveolens var. pumilum | (Lindl.) Rchb.f. | synonym |
| Oncidium lawrenceanum | (Lindl.) Rchb.f. | synonym |
| Oncidium brassia | Rchb.f. | synonym |
| Oncidium bidens | (Lindl.) Rchb.f. | synonym |
| Oncidium cinnabarinum | (Linden ex Lindl.) Rchb.f. | synonym |
| Oncidium longicuspe | (Rchb.f.) Rchb.f. | synonym |
| Oncidium lawrenceanum var. angustum | (Lindl.) Rchb.f. | synonym |
| Oncidium keilianum | (Rchb.f. ex Lindl.) Rchb.f. | synonym |
| Oncidium villosum | (Lindl.) Rchb.f. | synonym |
| Oncidium wageneri | (Rchb.f.) Rchb.f. | synonym |
| Oncidium signatum | Rchb.f. | synonym |
| Oncidium echinatum var. backhousianum | Rchb.f. | synonym |
| Oncidium echinatum | Kunth | ambiguous synonym |
| Oncidium diaphanum | Rchb.f. | synonym |
| Oncidium hyalinobulbon | Lex. | synonym |
| Oncidium pumilio | Rchb.f. | synonym |
| Oncidium gnomus | Kraenzl. | synonym |
| Oncidium titania | Schltr. | synonym |
| Oncidium oberonia | Schltr. | synonym |
| Oncidium hondurense | Ames | synonym |
| Oncidium pusillum var. megalanthum | Schltr. | synonym |
| Oncidium pusillum | (L.) Mutel | synonym |
| Oncidium iridifolium | Kunth | ambiguous synonym |
| Oncidium allemanii | Barb.Rodr. | synonym |
| Oncidium articulatum | E.S.Rand | synonym |
| Oncidium glossomystax | Rchb.f. | synonym |
| Oncidium decipiens | Lindl. | synonym |
| Oncidium iridifolium | Lindl. | ambiguous synonym |
| Oncidium crista-galli | Rchb.f. | synonym |
| Oncidium holochrysum | Rchb.f. | synonym |
| Oncidium onustum | Lindl. | synonym |
| Oncidium harlingii | Stacy | synonym |
| Oncidium scansor | Rchb.f. | synonym |
| Oncidium convolvulaceum | Lindl. & Paxton | synonym |
| Oncidium palaciosii | Dodson | synonym |
| Oncidium sancti-pauli | Kraenzl. | synonym |
| Oncidium serpens | Lindl. | synonym |
| Oncidium globuliferum | Kunth | synonym |
| Oncidium wercklei | Schltr. | synonym |
| Oncidium globuliferum var. costaricense | Rchb.f. | synonym |
| Oncidium luerorum | Dodson | synonym |
| Oncidium chiriquense | (Rchb.f.) Beer | synonym |
| Oncidium candelabrum | Linden ex Pérot | synonym |
| Oncidium coronarium | (Lindl.) Beer | synonym |
| Oncidium weberbauerianum | Kraenzl. | synonym |
| Oncidium juncifolium | (L.) Lindl. | synonym |
| Oncidium limminghei | É.Morren ex Lindl. | synonym |
| Oncidium echinophorum | Barb.Rodr. | synonym |
| Oncidium javieri | Archila | synonym |
| Oncidium sotoanum f. albiflorum | (Rchb.f.) Lückel | synonym |
| Oncidium ornithorhynchum var. albiflorum | Rchb.f. | synonym |
| Oncidium ornithorhynchum f. albiflorum | (Rchb.f.) O.Gruss & M.Wolff | synonym |
| Oncidium membranaceum | (Lindl.) Beer | synonym |
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