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Schaereria fuscocinera (Nyl.) Clauzade & Cl. Roux (redirected from: Aspicilia quartzitica)
Family: Megasporaceae
[Aspicilia quartzitica W. A. Weber,  more]
Schaereria fuscocinera image
Thompson, J., 1997. American Arctic Lichens: The Microlichens.
Thallus thin, chinky-areolate or areolate -granulose, sometimes slightly pruinose, blackish brown, the areolae convex, contiguous or dispersed over and bordered by a black hypothallus. Apothecia small, to 0.8 mm broad, partly innate but becoming adnate, concave at first, becoming convex, black, with thin or obsolete black margin; exciple dark black-brown; hypothecium hyaline; epihymenium blue-black or blue-violet with granules which turn blue-green with KOH; hymenium 62-100 µm, not easily separable from the subhymenium of more or less vertical hyphae, 1+ blue; paraphyses easily separable, thin, 2 µm, tips not thickened or up to 4 µm; asci cylindrico-clavate; spores hyaline, ellipsoid, 9-16 X 4.5-8 µm. Conidia short, straight, 4-9 x 1 µm.

Reactions: cortex C—; medulla C+ red, K—, P— or yellowish, 1+ reddish; exciple C+ red.

Contents: gyrophoric acid.

This species grows on acid rocks in the open. It is circumpolar arctic and alpine, in North America ranging south to New England and the northern shore of Lake Superior.