| Name | Hylocomiastrum umbratum (Hedwig) M. Fleischer ex Brotherus |
| Authorship | (Hedwig) M. Fleischer ex Brotherus |
| Rank | Species |
| Placed in | Hylocomiastrum |
| Citation | 1925 Nat. Pflanzenfam. [Engler & Prantl] 11: 487 |
| Holdings | 9 Specimens held in the Harvard University Herbaria identified as Hylocomiastrum umbratum (Hedwig) M. Fleischer ex Brotherus |
| Identification made in | [no date] (6), 2003 (2), 2005 (1) |