Rhizocarpon geographicum
PNW
AK
BC
ID
MT
OR
WA
YK
198 specimens from 11 herbaria:
Alaska (59)
British Columbia (38)
Idaho (9)
Montana (10)
Oregon (16)
Washington (63)
Yukon Territory (3)
34 images from 7 herbaria:
ALA (4)
BBLM (2)
OSC (3)
RR (12)
SRP (8)
VALE (1)
WTU (4)