Pea-green Scale Lichen - Psora rubiformis
State Rank Reason (see State Rank above)
In Montana widely scattered populations have been found in northwest, southwest, and southeast.
Thallus squamulose, pale yellowish green to pale brownish green; squamules ascending, more or less imbricate, and 1-3(4) mm in diameter (McCune and Goward 1995).
Historically this name was widely mis-applied. Specimens should be verified by a lichenologist.
Observations in Montana Natural Heritage Program Database
Number of Observations:
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Map Help and Descriptions
(Observations spanning multiple months or years are excluded from time charts)
On soil and in fissures of rock in alpine sites.
Reproduction is by spores from apothecia.
Threats or Limiting Factors