| Name | Cladonia mitrula f. imbricatula (Nylander) Vainio |
| Authorship | (Nylander) Vainio |
| Rank | Forma |
| Placed in | Cladonia mitrula Tuckerman |
| Citation | 1894 Acta Soc. Fauna Fl. Fenn. 10: 16 |
| Holdings | 8 Specimens held in the Harvard University Herbaria identified as Cladonia mitrula f. imbricatula (Nylander) Vainio |
| Identification made in | [no date] (8) |