| Scientific Name | Authority | Status |
|---|---|---|
| Acronia bivalvis | (Lindl.) Luer | synonym |
| Pleurothallis fuscata | Braid | synonym |
| Pleurothallis archidiaconi | Ames | synonym |
| Pleurothallis chanchamayoensis | Schltr. | synonym |
| Humboltia bivalvis | (Lindl.) Kuntze | synonym |
| Pleurothallis sigsigensis | Schltr. | synonym |
| Pleurothallis cardiantha | Rchb.f. | synonym |
| Pleurothallis pichinchae | Schltr. | ambiguous synonym |
| Zosterophyllanthos bivalvis | (Lindl.) Szlach. | synonym |
| Pleurothallis lansbergii | Regel | synonym |
| Pleurothallis angusta | Ames & C.Schweinf. | synonym |
| Zosterophyllanthos antonensis | (L.O.Williams) Szlach. & Archila | synonym |
| Zosterophyllanthos archidiaconi | (Ames) Veyret & Szlach. | synonym |
| Pleurothallis harlingii | Garay | synonym |
| Humboltia cardium | (Rchb.f.) Kuntze | synonym |
| Pleurothallis lilianiae | Luer | synonym |
| Pleurothallis antonensis | L.O.Williams | synonym |
| Acronia archidiaconi | (Ames) Carnevali & G.A.Romero | synonym |
| Pleurothallis stenocardium | Schltr. | synonym |
| Pleurothallis lansbergiana | Regel | synonym |
| Pleurothallis ignivomi | Schltr. | synonym |
| Zosterophyllanthos lilianiae | (Luer) Szlach. & Kulak | synonym |
| Pleurothallis phaeantha | Schltr. | synonym |
| Pleurothallis cardium | Rchb.f. | synonym |
| Zosterophyllanthos ignivomi | (Schltr.) Szlach. & Marg. | synonym |
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