E-Flora BC: Electronic Atlas of the Flora of British Columbia

Leptochidium albociliatum (Desmaz.) M. Choisy
Whiskered codger

Introduction to the Lichens

© Jim Riley  Email the photographer   (Photo ID #23300)

E-Flora BC Static Map
Distribution of Leptochidium albociliatum
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Consortium of North American Lichen Herbaria map

Species Information

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Illustration By: Trevor Goward

Common Name: The Tarpaper Lichen. Emphasizes the typically dark upper surface, as well as the unstratified thallus, in which a pale medulla is lacking.
A small to medium nonstratified foliose lichen (gelatinous when wet), corticate above and below, isidiate, lobes loosely attached, 3–5 mm wide, thick. Upper surface blackish brown, dull, bearing minute white hairs on margins. Lower surface dark, white-tomentose, rhizines absent. Medulla absent. Photobiont blue-green.
Apothecia located over upper surface, disc orangish brown; spores 2-celled, ellipsoid to pointed-ellipsoid, colourless, 8 per ascus.
Over mossy soil.
Notes: Leptochidium is a monotypic genus. For points of distinction with similar lichens, see the descriptions under Collema.
Species description:
Thallus small to medium but not minute; lobes averaging to more than 1.5 mm wide, always dorsiventral; isidia present or absent, distinctly wrinkled upper surface AND
Lobe margins and/or isidia bearing minute, erect white hairs
All spot tests negative
No lichen substances reported.

Source: Lichens of British Columbia

Habitat / Range

Habitat: Frequent over (mossy) rock or occasionally over soil in open or somewhat sheltered sites at lower elevations throughout, except absent from boreal regions
World Distribution: western N Am – eastern N Am – western Eurasia, N to AK, S to CA.

Source: Lichens of British Columbia

Synonyms and Alternate Names

Leptogium albociliatum Desmaz.
Leptogium pilosellum G. Merr.
Polychidium albociliatum

Taxonomic and Nomenclatural Links

Additional Range and Status Information Links

Additional Photo Sources

General References