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Montana Field Guide

Montana Field Guides

A Lichen - Arctoparmelia subcentrifuga
Other Names:  Xanthoparmelia subcentrifuga

Species of Concern

Global Rank: G4G5
State Rank: S1
* (see State Rank Reason below)

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

External Links






State Rank Reason (see State Rank above)
In Montana known from a few sites in the western and central regions of the state.
 
General Description
Thallus foliose, yellowish green. Soredia present on the upper surface McCune and Geiser 2009.

Diagnostic Characteristics
Superficially similar to Xanthoparmelia. Arctoparmelia differs in chemistry; has a lower surface that is often velvety, ivory white to gray, black, or purplish; often has narrower lobes; and geographically restricted to boreal and arctic regions McCune and Geiser 2009.

Species Range
Present
 


Range Comments
Occurs in the arctic south to Colorado; also in the Great Lakes region.

Summary of Observations Submitted for Montana
Number of Observations: 1

(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
Siliceous rock in montane to subalpine sites.

Reproductive Characteristics
Reproduces asexually by soredia.

Threats or Limiting Factors
None identified.

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