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Montana Field Guide

Montana Field Guides

Wart Lichen - Pertusaria diluta

Species of Concern
Native Species

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

Agency Status
MNPS Threat Rank:

External Links

State Rank Reason (see State Rank above)
This species was first recognized in Montana. The Type specimen is from the Cabinet Mountains and is currently the only Montana occurrence.
  • Details on Status Ranking and Review
    Wart Lichen (Pertusaria diluta) Conservation Status Review
    Review Date =
General Description
We do not yet have descriptive information on this species.  Please try the buttons above to search for information from other sources.

Range Comments
This species is newly recognized and has been found in 14 locations in British Columbia, one location in Idaho, and one location in Montana.

Wet/humid old-growth forests to about 1000 meters. It has been found on tree trunks, branches, fine twigs, and logs of Tsuga heterophylla, Thuja plicata, and Pseudotsuga menziesii.

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Citation for data on this website:
Wart Lichen — Pertusaria diluta.  Montana Field Guide.  .  Retrieved on , from