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Montana Field Guide

Montana Field Guides

Friendly Camouflage Lichen - Cetraria commixta
Other Names:  Cetrariella commixta, Melanelia commixta

Species of Concern
Native Species

Global Rank: G5
State Rank: S1
* (see State Rank Reason below)

Agency Status
MNPS Threat Rank:

External Links

State Rank Reason (see State Rank above)
Known from very few locations in northwest Montana.
  • Details on Status Ranking and Review
    Friendly Camouflage Lichen (Cetraria commixta) Conservation Status Review
    Review Date =
General Description
Thallus foliose, upper surface brown and channeled, and lower surface pale to brown; conidia cylindrical and the ends not swollen; and lacking soredia or isidia (McCune and Geiser 2009). Chemistry: medulla K-, P-, and KC+ red.

Diagnostic Characteristics
Very similar to Cetraria hepatizon, which is fairly common. Cetraria hepatizon has a dark lower surface; K+ yellow and P+ orange medulla; and has conidia of a narrow center and swollen ends.

Range Comments
A circumpolar, arctic-alpine lichen that extends south to Washington and Colorado.

Observations in Montana Natural Heritage Program Database
Number of Observations: 2

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



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

On rock in open, alpine areas.

Reproductive Characteristics
Reproduces asexually by conidia from the pycnidia.

Threats or Limiting Factors
None identified.

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Citation for data on this website:
Friendly Camouflage Lichen — Cetraria commixta.  Montana Field Guide.  .  Retrieved on , from