| Name | Cladonia didyma (Fée) Vainio |
| Authorship | (Fée) Vainio |
| Rank | Species |
| Placed in | Cladonia P. Browne |
| Contains | Cladonia didyma var. muscigena (Eschweiler) Vainio Cladonia didyma f. squamulosa Robbins Cladonia didyma f. subulata Sandstede Cladonia didyma var. vulcanica (Zollinger & Moritzi) Vainio |
| GUID | urn:lsid:indexfungorum.org:names:119675 |
| Citation | 1887 Acta Soc. Fauna Fl. Fenn. 4(no. 1): 137 |
| Holdings | 86 Specimens held in the Harvard University Herbaria identified as Cladonia didyma (Fée) Vainio |
| Identification made in | [no date] (86) |