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dust lichen

Lepraria incana ! {(L.) Ach. 1803 }


Thallus a diffuse, thin, powdery crust, lacking a medulla or any marginal differentiation into lobes, pale grey to distinctly blue-grey, apothecia unknown. In shaded places on acid rocks, walls and tree-trunks, widespread and evidently common, but part of a complex of species that require thin-layer chromatography for certain identification.!!!!!! ( )


The Stereocaulaceae are a family of lichenized fungi in the order Lecanorales. Species of this family are widely distributed in temperate boreal and austral regions


Greenish-grey or pale grey thallus comprised of very small fluffy granules with no clear lobes or white, 'cottony' medulla. On shaded trees, mosses and acidic rocks. Chemical reactions negative. UV+ white ( ), ( )

1 Species ID Suggestions

LarsKorb 12 years ago
Mealy Rosette Lichen
Physcia millegrana

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AlexKonig 12 years ago
AlexKonig 12 years ago

sorry lars but the "physica millegrana" doesn't convince me. I entered the latin name at google-image, take a look, the most are branched, little leaf like structures! Mine was powdery bumpy. But without your suggestion would have finding an id, surely taken longer- thx

Spotted by

Heerlen, Limburg, Netherlands

Spotted on Feb 19, 2012
Submitted on Feb 20, 2012

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