Arthonia
glebosa
PNW
BC
ID
MT
OR
WA
YK
55 specimens from 8 herbaria:
British Columbia (6)
Idaho (34)
Montana (2)
Oregon (8)
Washington (4)
Yukon Territory (1)
42 images from 5 herbaria:
ALA (1)
RR (27)
SRP (8)
SRP-L (4)
VALE (2)