Physcia
aipolia
PNW
AK
BC
ID
MT
OR
WA
234 specimens from 7 herbaria:
Alaska (66)
British Columbia (40)
Idaho (15)
Montana (26)
Oregon (45)
Washington (42)
135 images from 4 herbaria:
ALA (28)
OSC (93)
RR (13)
SRP (1)