| Classification | Pottiaceae: Tortula | 
| Harvard University Herbaria Barcode(s) | 00220751 | 
| Type Status | Type | 
| Collector | E. B. Bartram | 
| Collector number | 907 | 
| Country | United States of America | 
| State | Arizona | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Arizona: Santa Cruz County | 
| Locality | White House Canyon, Santa Rita Mountains. 6500 ft | 
| Date Collected | 1924-02-07 | 
| Elevation | 1981 m | 
| Substrate | ledges | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/0741eaba-22fb-48e3-b024-e2abb78f6661 | 
| Harvard University Herbaria Barcode | 00220751 | 
| Herbarium | FH | 
| Previous ownership | Herbarium Bartram sheet 11760 | 
| Family | Pottiaceae | 
| Type Status | Type | 
| Type of | Tortula williamsii E. B. Bartram | 
| Determination Remarks | [filed under] | 
| Taxon Reference | (for  Tortula williamsii E. B. Bartram) Bryologist 1924. 27: 70. | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Packet | 
| Preparation Method | Dried |