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Montana Field Guide

Montana Field Guides

A Lichen - Psora rubiformis

Potential Species of Concern

Global Rank: G3G5
State Rank: S1S2
* (see State Rank Reason below)

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:

External Links






State Rank Reason (see State Rank above)
In Montana widely scattered populations have been found in northwest, southwest, and southeast.
 
General Description
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).

Diagnostic Characteristics
Historically this name was widely mis-applied. Specimens should be verified by a lichenologist.

Species Range
Present
 


Summary of Observations Submitted for Montana
Number of Observations: 5

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density

Recency

 

(Observations spanning multiple months or years are excluded from time charts)



Habitat
On soil and in fissures of rock in alpine sites.

Reproductive Characteristics
Reproduction is by spores from apothecia.

Threats or Limiting Factors
Climate change.

References
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Citation for data on this website:
A Lichen — Psora rubiformis.  Montana Field Guide.  .  Retrieved on , from