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- Kingdom - Fungi - Fungi
  - Division - Sac Fungi - Ascomycota
    - Class - (Lecanoromycetes) - Lecanoromycetes
      - Order - Pertusariales - Pertusariales
        
        Family - Megasporaceae - Megasporaceae
        
        Species - Roger's Vagabond Lichen - Circinaria rogeri

Roger's Vagabond Lichen - Circinaria rogeri

Other Names: Aspicilia fruticulosa, Aspicilia rogeri

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Species of Concern
Native Species

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

Agency Status
USFWS:
USFS:
BLM:

External Links

State Rank Reason (see State Rank above)

In Montana known from one location in south-central region of the state.

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.

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

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Relative Density

Recency

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

Habitat

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.

Stewardship Responsibility

Threats or Limiting Factors

None identified.

References

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Citation for data on this website:
Roger's Vagabond Lichen — Circinaria rogeri. Montana Field Guide. Montana Natural Heritage Program. Retrieved on January 15, 2025, from https://FieldGuide.mt.gov/speciesDetail.aspx?elcode=NLHYM00110