Collema
tenax
PNW
AK
BC
ID
MT
OR
WA
YK
142 specimens from 9 herbaria:
Alaska (13)
British Columbia (18)
Idaho (57)
Montana (16)
Oregon (24)
Washington (13)
Yukon Territory (1)
96 images from 7 herbaria:
ALA (7)
BBLM (1)
CRMO (2)
RR (55)
SRP (10)
SRP-L (8)
VALE (13)