| Classification | Sematophyllaceae: Rhaphidostichum | 
| Harvard University Herbaria Barcode(s) | 00220317 | 
| Type Status | Isotype | 
| Collector | Albert C. Smith | 
| Collector number | 3635 | 
| Country | Guyana | 
| Geography | South America: South America (Region) (Region): Guyana | 
| Locality | British Guiana. Northwestern portion of Kanuku Mountains: Mount Iramaikpang | 
| Date Collected | 1938-04-22 - 1938-04-23 | 
| Elevation | 900 m | 
| Habitat | Dense forest | 
| Substrate | on decayed wood | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/770b6bec-8136-4f7e-a1e7-e2409f0094e1 | 
| Harvard University Herbaria Barcode | 00220317 | 
| Herbarium | FH | 
| Family | Sematophyllaceae | 
| Type Status | Isotype | 
| Isotype of | Rhaphidostichum guianense E. B. Bartram | 
| Determination Remarks | [filed under] | 
| Taxon Reference | (for  Rhaphidostichum guianense E. B. Bartram) Bull. Torrey Bot. Club 1939. 66: 228. | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Packet | 
| Preparation Method | Dried | 
| Item Remarks | Sporophyte present. |