| Scientific Name | Authority | Status |
|---|---|---|
| Dendrobium caespitificum | Ridl. | synonym |
| Dendrobium masarangense var. theionanthum | (Schltr.) T.M.Reeve & P.Woods | synonym |
| Dendrobium theionanthum | Schltr. | synonym |
| Oxyglossellum theionanthum | (Schltr.) M.A.Clem. & D.L.Jones | synonym |
| Pedilonum frigidum | (Schltr.) Rauschert | synonym |
| Dendrobium monogrammoides | J.J.Sm. | synonym |
| Dendrobium frigidum | Schltr. | synonym |
| Pedilonum caespitificum | (Ridl.) Rauschert | synonym |
| Dendrobium pseudofrigidum | J.J.Sm. | synonym |
| Pedilonum gemma | Rauschert | synonym |
| Pedilonum theionanthum | (Schltr.) Rauschert | synonym |
| Dendrobium gemma | Schltr. | synonym |
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