| Name | Cladonia tenuis (Flörke) Harmand |
| Authorship | (Flörke) Harmand |
| Rank | Species |
| Placed in | Cladonia P. Browne |
| Contains | Cladonia tenuis f. decumbens (Harmand) Harmand Cladonia tenuis f. flavicans Flörke |
| Holdings | 265 Specimens held in the Harvard University Herbaria identified as Cladonia tenuis (Flörke) Harmand |
| Identification made in | [no date] (265) |