| Name | Microsaccus longicalcaratus Ames & Schlechter |
| Authorship | Ames & Schlechter |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Microsaccus |
| Citation | 1920 Orchidaceae (Ames) 6: 232 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Microsaccus longicalcaratus Ames & Schlechter |
| Identification made in | [no date] (5) |