| Name | Cladonia portentosa subsp. pacifica Ahti | 
| Authorship | Ahti | 
| Rank | Subspecies | 
| Placed in | Cladonia portentosa (Dufour) Coemans | 
| GUID | urn:lsid:indexfungorum.org:names:350644 | 
| Citation | 1978 Acta Bot. Fenn. 15(1): 9 | 
| Holdings | 16 Specimens held in the Harvard University Herbaria identified as Cladonia portentosa subsp. pacifica Ahti | 
| Identification made in | [no date] (16) |