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Acarospora fuscata
Scientific classification
Domain:	Eukaryota
Kingdom:	Fungi
Division:	Ascomycota
Class:	Lecanoromycetes
Order:	Acarosporales
Family:	Acarosporaceae
Genus:	Acarospora
Species:	A. fuscata
Binomial name
	Acarospora fuscata; (Nyl.) Th.Fr. (1871)
Synonyms
	Lichen fuscatus Schrad. (1794); Lecanora badia var. fuscata Ach. (1810); Lecanora fuscata Röhl. (1813); Lecanora fuscata Nyl. (1863); Acarospora veronensis var. fuscata (Nyl.) Arnold (1870);

Acarospora fuscata ("brown cobblestone lichen") is a glossy pale or yellowish-brown areolate lichen with angular areolas that grows up to 10 cm (4 in) wide on non-calcareous rock in low and high elevations.^[2]^: 217^[3] It grows in Europe and North America.^[3] It grows in southern California and on the eastern part of the Sierra Nevada range.^[2]^: 217 It may grow with the areolas disconnected.^[2]^: 217 The areolas may lift at the edges, but the areolas do not overlap like true squamules (sub-squamulose).^[2]^: 217 More common in the Sierras is the similar species Acarospora thamnina, which is truly squamulose with overlapping scales.^[2]^: 217

It usually has 0-1 apothecium per areole, which may be point-like (punctiform) or fill the entire areole with a disc that is rough surfaced and reddish brown. The asci are club shaped (clavate), with over 100 spores.^[3] Lichen spot tests are K−, C+ vaguely pink, KC+ red, and P−.^[2]^: 217^[3] Secondary metabolites include gyrophoric acid.^[3]

References

^ "Acarospora fuscata (Nyl.) Th. Fr". Species Fungorum. CAB International. Retrieved 2014-10-09.
^ ^a ^b ^c ^d ^e ^f Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, ISBN 978-0-300-19500-2
^ ^a ^b ^c ^d ^e Lichen Flora of the Greater Sonoran Desert Region. Vol 3., Nash, T.H., Ryan, B.D., Gries, C., Bugartz, F., (eds.) 2001, [1]

This Lecanoromycetes-related article is a stub. You can help Wikipedia by expanding it.

[urlFungorum_synonymy:_Acarospora_fuscata-1] "Acarospora fuscata (Nyl.) Th. Fr". Species Fungorum. CAB International. Retrieved 2014-10-09.

[SSFGCL-2] ^ ^a ^b ^c ^d ^e ^f Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, ISBN 978-0-300-19500-2

[LFGSDR-3] Lichen Flora of the Greater Sonoran Desert Region. Vol 3., Nash, T.H., Ryan, B.D., Gries, C., Bugartz, F., (eds.) 2001, [1]

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