| Classification | Hypnaceae: Isopterygium | 
| Barcode(s) | 00213383 | 
| Type Status | Holotype | 
| Collector | A. H. G. Alston | 
| Collector number | 5574c | 
| Country | Venezuela | 
| State | Distrito Federal | 
| Geography | South America: South America (Region) (Region): Venezuela: Distrito Federal | 
| Locality | Pico de El Avila, 2000 m. | 
| Date Collected | 1938-12-17 | 
| Remarks | Herbarium Bartram sheet 6498. | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/9212d706-6010-4135-aeda-6534d9147085 | 
| Harvard University Herbaria Barcode | 00213383 | 
| Herbarium | FH | 
| Previous ownership | Herbarium Bartram sheet 6498 | 
| Family | Hypnaceae | 
| Type Status |  Holotype | 
| Holotype of |  Isopterygium alstonii E. B. Bartram | 
| Verified by | Ireland, Robert Root | 
| Date Determined | 1988 | 
| Determination Remarks |  [filed under] [current name] | 
| Taxon Reference | (for  Isopterygium alstonii E. B. Bartram) Bryologist 1953. 56: 168. | 
| Family | Hypnaceae | 
| Determination |  Isopterygium alstonii E. B. Bartram | 
| Determined by | Bartram, Edwin Bunting | 
| Determination Remarks |  [label name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Packet | 
| Preparation Method | Dried |