| Name | Acarospora fuscata (Schrader) Arnold |
| Authorship | (Schrader) Arnold |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Acarospora A. Massalongo |
| Citation | 1871 ["1870"] Flora 53(30-31): 469 |
| Holdings | 151 Specimens held in the Harvard University Herbaria identified as Acarospora fuscata (Schrader) Arnold |
| Identification made in | [no date] (128), 1926 (1), 1958 (1), 1959 (7), 1960 (5), 1978 (2), 1979 (1), 2001 (1), 2010 (3), 2012 (1), 2022 (1) |