| Name | Cladonia macroceras (Delise) Havaas |
| Authorship | (Delise) Havaas |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Cladonia P. Browne |
| Citation | 1928 [1927] Bergens Mus. Arbok 1927(3): 12 |
| Holdings | 8 Specimens held in the Harvard University Herbaria identified as Cladonia macroceras (Delise) Havaas |
| Identification made in | [no date] (6), 2009 (1), 2018 (1) |
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