| Name | Atrichum angustatum var. rhystophyllum (Müller Halle) P. W. Richards & E. C. Wallace |
| Authorship | (Müller Halle) P. W. Richards & E. C. Wallace |
| Rank | Variety |
| Placed in | Atrichum angustatum (Bridel) Bruch & Schimper |
| Citation | 1950 Trans. Brit. Bryol. Soc. 1(4): iv |
| Holdings | 12 Specimens held in the Harvard University Herbaria identified as Atrichum angustatum var. rhystophyllum (Müller Halle) P. W. Richards & E. C. Wallace |
| Identification made in | [no date] (12) |