Acianthera unguicallosa (Ames & C.Schweinf.) Solano
| A new species of Pleurothallis from Mexico O Ames and C Schweinfurth (1930) Proceedings of The Biological Society of Washington 43: 195-196 | |
| The flora of the Revillagigedo Islands Ivan Murray Johnston (1931) Proceedings of the California Academy of Sciences 20: 9-104 |