Cetraria
ericetorum
PNW
AK
BC
MT
WA
YK
207 specimens from 6 herbaria:
Alaska (60)
British Columbia (115)
Montana (6)
Washington (25)
Yukon Territory (1)
39 images from 4 herbaria:
ALA (24)
RR (9)
SRP-L (2)
SRP (4)