| Classification | Hookeriaceae: Callicostella |
| Harvard University Herbaria Barcode(s) | 00213336 |
| Type Status | Holotype |
| Collector | B. Willis |
| Collector number | 21 |
| Country | Panama |
| Geography | North America: Central America (Region): Panama: Barro Colorado Island |
| Locality | on rock beneath water in brook starting about 30 m. above Zetek trail. |
| Date Collected | 1939-01-21 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/f3c92530-b663-45d0-9f5f-cd9fad8721a1 |
| Harvard University Herbaria Barcode | 00213336 |
| Herbarium | FH |
| Previous ownership | Herbarium Bartram sheet 1945 |
| Family | Hookeriaceae |
| Determination | Callicostella aquatica E. B. Bartram |
| Determined by | E. B. Bartram |
| Determination Remarks | [is label name] |
| Family | Hookeriaceae |
| Determination | Callicostella pallida (Hornschuch) Angstrom |
| Determined by | B. H. Allen (MO) |
| Date Determined | 2007 |
| Determination Remarks | [is Current name] |
| Family | Hookeriaceae |
| Type Status | Holotype |
| Holotype of | Callicostella aquatica E. B. Bartram |
| Verified by | B. H. Allen (MO) |
| Date Determined | 2007 |
| Taxon Reference | (for Callicostella aquatica E. B. Bartram) Bryologist 1939. 42: 155. |
| Sex | not determined |
| Phenology | Sporophyte |
| Preparation Type | Packet |
| Preparation Method | Dried |
