| Name | Calamus microsphaerion Beccari |
| Authorship | Beccari |
| Rank | Species |
| Placed in | Calamus Linnaeus |
| Remarks | [confirmed][imported from GBIF] |
| Citation | 1904 Fragm. Fl. Philipp. 45 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Calamus microsphaerion Beccari |
| Identification made in | [no date] (2) |