| Name | Cladonia cornucopioides (Linnaeus) Hoffmann | 
| Authorship | (Linnaeus) Hoffmann | 
| Rank | Species | 
| Placed in | Cladonia P. Browne | 
| Citation | 1796 ["1795"] Deutschl. Fl., Theil 2 (Hoffm.) 128 | 
| Holdings | 7 Specimens held in the Harvard University Herbaria identified as Cladonia cornucopioides (Linnaeus) Hoffmann | 
| Identification made in | [no date] (7) |