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Montana Field Guide

Montana Field Guides

Vagrant Aspicilia Lichen - Aspicilia fruticulosa

Species of Concern
Native Species

Global Rank: G3
State Rank: S1
* (see State Rank Reason below)

Agency Status
MNPS Threat Rank:

External Links

State Rank Reason (see State Rank above)
In Montana known from one location in south-central region of the state.
  • Details on Status Ranking and Review
    Vagrant Aspicilia Lichen (Aspicilia fruticulosa) Conservation Status Review
    Review Date =
General Description
Thallus fruticose. Thallus of erect hemispherical to spherical cushions of knobby balls. Branches terete (or nearly so), short, thick, blunt, and tipped with conspicuous pseudocyphellae. Branching is dichotomous and very compact McCune and Geiser 2009. Chemistry: Medulla K- or K+ red (developing slowly) McCune and Geiser 2009.

Species Range

Range Comments
Eastern Montana, southern Idaho, and eastern Oregon (McCune and Geiser 1997). Also occurs in Nevada (data from Nevada Natural Heritage Program, May 2001).

Observations in Montana Natural Heritage Program Database
Number of Observations: 1

(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)

Calcareous soil in dry areas. Occasionally found with A. hispida McCune and Geiser 2009.

Reproductive Characteristics
Reproduces by spores from apothecia, which are rarely produced.

Threats or Limiting Factors
None identified.

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Citation for data on this website:
Vagrant Aspicilia Lichen — Aspicilia fruticulosa.  Montana Field Guide.  .  Retrieved on , from