Teloschistes is a genus of lichen-forming fungi in the family Teloschistaceae, of which it is the namesake. Species of Teloschistes are among the most visually striking lichens, typically forming small, bushy, much-branched growths in vivid shades of yellow to orange, colours produced by anthraquinone pigments, particularly parietin. The genus has a worldwide distribution, with species occurring on twigs, bark, and rock surfaces in open, well-lit habitats ranging from coastal scrub and semi-arid shrublands to alpine zones.

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