Montana Field Guide

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Montana Field Guides

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- Kingdom - Fungi - Fungi
  - Division - Sac Fungi - Ascomycota
    - Class - (Lecanoromycetes) - Lecanoromycetes
      - Order - Lecanorales - Lecanorales
        
        Family - Parmeliaceae - Parmeliaceae
        
        Species - Ribbon Rag Lichen - Platismatia stenophylla

Ribbon Rag Lichen - Platismatia stenophylla

Potential Species of Concern
Native Species

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

Agency Status
USFWS:
USFS:
BLM:

External Links

State Rank Reason (see State Rank above)

Known from a few locations in western Montana.

General Description

Thallus foliose, bushy erect, to 10(15) cm broad; lobes mostly 1-2(3)mm broad (occasionally broader in the basal parts); upper surface whitish, grayish, pale greenish gray, or browned in exposed sites; lower surface black, brown, white, or with patches of these colors; rhizines few; isidia and soredia lacking; pycnidia dark, marginal; and apothecia common McCune and Geiser 2009. Chemistry: cortex K+ yellow, medulla K-, C-, KC-, and P- McCune and Geiser 2009.

Diagnostic Characteristics

The elongate, narrow, erect lobes lacking soredia and isidia are diagnostic. P. herrei can be similar, but bears isidia McCune and Geiser 2009.

Range Comments

This lichen occurs from southern British Columbia to California, and is common in the West Cascade Mountains of Oregon to Washington, with rare inland disjuncts to western Montana.

Observations in Montana Natural Heritage Program Database

Number of Observations: 3

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

Relative Density

Recency

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

Habitat

Generally on conifer bark and wood in low elevation, mesic forests.

Reproductive Characteristics

Reproduces sexually by spores from the apothecium.

Stewardship Responsibility

Threats or Limiting Factors

None identified.

References

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Dragonflies / Damselflies

Ferns and allies

Conifers

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Citation for data on this website:
Ribbon Rag Lichen — Platismatia stenophylla. Montana Field Guide. Montana Natural Heritage Program. Retrieved on November 22, 2024, from https://FieldGuide.mt.gov/speciesDetail.aspx?elcode=NLT0023020