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Physcia sp.

Physcia sp.


Physcia sp. parasitized by a lichenicolous fungus, dark spots, maybe Abrothallus sp. Lichenicolous fungi live exclusively on lichens, most commonly as host-specific parasites, but also as broad-spectrum pathogens, saprotrophs or commensals. Over 1800 species have been described throughout the Ascomycota and Basidiomycota, and estimates are that 3000 species will eventually be described. 95% of described lichenicolous fungi belong to the ascomycetes. Abrothallus sp. is a lichenicolus fungus, Ascomycota, incertae sedis. Its apothecia are black, emarginate (lecideoid), convex, with a somewhat rugose surface , arising directly on the host thallus.


On a Holm oak twig


Camera Model: NIKON D300. Exposure Time: 1/60 sec. f/36 ISO Speed Rating: 200. Focal Length: 90.0 mm. Flash fired.

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Spotted by

Alcobendas, Madrid, Spain

Spotted on Jun 13, 2012
Submitted on Jul 24, 2012

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