| Name | Sphaerotheca pannosa (Wallroth) Léveillé: Fries |
| Authorship | (Wallroth) Léveillé: Fries |
| Rank | Species |
| Placed in | Sphaerotheca Léveillé |
| Citation | 1851 Ann. Sci. Nat., Bot. sér. 3 15: 138 |
| Holdings | 13 Specimens held in the Harvard University Herbaria identified as Sphaerotheca pannosa (Wallroth) Léveillé: Fries |
| Identification made in | [no date] (10), 1982 (2), 1985 (1) |