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

Esslingeriana idahoensis (Essl.) Hale & Lai
Tinted tatter

Introduction to the Lichens

© Jim Riley  Email the photographer   (Photo ID #15505)

E-Flora BC Static Map
Distribution of Esslingeriana idahoensis
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Consortium of North American Lichen Herbaria map

Species Information

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Illustration By: Trevor Goward

Common Name: The Rag Lichen. Descriptive of the pale, often somewhat tattered lobes of the species.
Small to medium stratified foliose lichen, corticate above and below, lacking soredia and isidia, lobes loosely attached, elongate, averaging to 1.5–5 (–7) mm wide, thin. Upper surface pale yellowish grey, usually wrinkled. Lower surface mostly black, bearing sparse, short, simple rhizines. Medulla white. Photobiont green.
Apothecia usually located along margins, especially near lobe tips, disc brown; spores simple, ovoid to subspherical, colourless, 8 per ascus. Pycnidia black, conspicuous.
Over conifers.
Notes: Esslingeriana is a monotypic genus restricted to western North America at temperate latitudes. For points of distinction with similar species in other genera, see the descriptions under Platismatia.
Cortex K+ yellow, PD+ pale yellow; medulla K- or K+ pale violet.
Atranorin, endocrocin, and two unknown substances.

Source: Lichens of British Columbia

Habitat / Range

Habitat: Infrequent over conifers in open intermontane forests, mostly at lower elevations, also rare in dry maritime forests
World Distribution: western N Am, N to BC, S to CA.

Source: Lichens of British Columbia

Synonyms and Alternate Names

Cetraria idahoensis Essl.

Taxonomic and Nomenclatural Links

Additional Range and Status Information Links

Additional Photo Sources

General References