Montana Field Guide

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- Kingdom - Fungi - Fungi
  - Division - Sac Fungi - Ascomycota
    - Class - (Lecanoromycetes) - Lecanoromycetes
      - Order - Peltigerales - Peltigerales
        
        Family - Peltigeraceae - Peltigeraceae
        
        Species - Greater Tundra Owl Lichen - Solorina octospora

Greater Tundra Owl Lichen - Solorina octospora

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Species of Concern
Native Species

Global Rank: G3G5
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 the northwest.

General Description

Thallus with normal, expanded lobes or just a narrow rim around the apothecia; apothecia with 8 spores per ascus (examine thin sections of the apothecia under the compound microscope); and cephalodia internal (McCune and Geiser 2009).

Diagnostic Characteristics

Small thallus with relatively large apothecia. Examine thin sections of the apothecia under the compound microscope and look for 8 spores per ascus.

Range Comments

An arctic-alpine species that extends southward in the Rocky Mountains to New Mexico (McCune and Geiser 2009).

Habitat

On damp calcareous soil (alpine sod) in the alpine/sub-alpine zones.

Ecology

Photobiont: green algae and cyanobacteria (nitrogen-fixer).

Reproductive Characteristics

Reproduces sexually by spores from the apothecium; 8 spores per ascus.

Stewardship Responsibility

Threats or Limiting Factors

None identified.

References

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Citation for data on this website:
Greater Tundra Owl Lichen — Solorina octospora. Montana Field Guide. Montana Natural Heritage Program. Retrieved on November 22, 2024, from https://FieldGuide.mt.gov/speciesDetail.aspx?elcode=NLT0028020