| Name | Bryum purpurascens subsp. autumnale (Limpricht) J. J. Amann | 
| Authorship | (Limpricht) J. J. Amann | 
| Rank | Subspecies | 
| Placed in | Bryum purpurascens (R. Brown) Bruch & Schimper | 
| Citation | 1893 Rev. Bryol. 20: 44 | 
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Bryum purpurascens subsp. autumnale (Limpricht) J. J. Amann | 
| Identification made in | [no date] (1) |