| Classification | Hypnaceae: Isopterygium | 
| Harvard University Herbaria Barcode(s) | 00213419 | 
| Type Status | Type | 
| Collector | R. S. Williams | 
| Collector number | 3164 | 
| Country | Philippines | 
| Geography | Asia: Southeast Asia (Region): Philippines: Mindanao | 
| Locality | Southwest Mindanao, Lax river, at slight elevation | 
| Date Collected | 1905-02-** | 
| Habitat | on log | 
| Container | Philippine Mosses, S. W. Minadano | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/1290e389-5a40-4879-ab6e-d70dd50ba874 | 
| Harvard University Herbaria Barcode | 00213419 | 
| Herbarium | FH | 
| Previous ownership | NY | 
| Family | Hypnaceae | 
| Type Status | Type | 
| Type of | Isopterygium saxense R. S. Williams | 
| Determination Remarks | [filed under] | 
| Taxon Reference | (for  Isopterygium saxense R. S. Williams) Bull. New York Bot. Gard. 1914. 8(31): 369. | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Packet | 
| Preparation Method | Dried |