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Montana Field Guide

Montana Field Guides

Slit-rimmed Ramalina Lichen - Ramalina subleptocarpha

Potential Species of Concern
Undetermined Origin

Global Rank: G3G5
State Rank: S1
* (see State Rank Reason below)

Agency Status
MNPS Threat Rank:

External Links

State Rank Reason (see State Rank above)
Known from a few locations in western Montana.
  • Details on Status Ranking and Review
    Slit-rimmed Ramalina Lichen (Ramalina subleptocarpha) Conservation Status Review
    Review Date =
General Description
Thallus fruticose, tufted to pendulous, to 10(25) cm long, pale greenish or tinged yellowish; branches mostly 2-10 mm broad, flattened, palmately branched near the base; soredia both marginal and laminal; and apothecia not seen (McCune and Geiser 2009). Chemistry: Cortex KC+ yellow; Medulla K-, C-, KC-, P- (McCune and Geiser 2009).

Diagnostic Characteristics
Distinguished by its broad, strap-shaped lobes with both laminal and marginal soredia, as well as a palmate branching pattern near the base. R. subleptocarpha has often been mistaken for R. farinacea, which has narrower lobes, mainly marginal soralia, and usually is not palmate branched near the base. Stunted air-pollution morphs of R. subleptocarpha and R. farinacea can be difficult to distinguish (McCune and Geiser 2009).

Species Range

Range Comments
British Columbia to California, on the coast and in the Willamette-Puget trough (McCune and Geiser 2009). Inland disjuncts in Montana.

Observations in Montana Natural Heritage Program Database
Number of Observations: 4

(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)

On bark and wood (of trees and shrubs), especially in riparian areas. In Montana found on Acer (maple) shrubs and Picea (spruce) trees.

Reproductive Characteristics
Reproduces asexual by soredia.

Threats or Limiting Factors
None identified.

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Citation for data on this website:
Slit-rimmed Ramalina Lichen — Ramalina subleptocarpha.  Montana Field Guide.  .  Retrieved on , from