Fungi → Ascomycetes → Caliciaceae
Arboreal Urn Lichen
Tholurna dissimilis
Nonvascular Plants & Fungi
ORBIC List 2S2
State Rank
SX
S1
S2
S3
S4
S5
S2 — Imperiled in Oregon
G4G5
Global Rank
Apparently Secure
List 2
ORBIC
Threatened in Oregon
What do these ranks mean? ORBIC's ranking definitions or NatureServe's conservation status categories
Ecoregions
East Cascades
West Cascades
Counties
Clackamas · Jefferson · Lane · Linn · Marion
Other states / provinces
CA, WA, BC, Scandinavia, Eurasia
Range map
Certain
Possible
Extirpated
Absent