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Parmelina tiliacea parasitized by Marchandiomyces corallinus

Parmelina tiliacea & Marchandiomyces corallinus

Description:

Foliose lichen Parmelina tiliacea paratitized by the lichenicolous fungus Marchandiomyces corallinus. 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. Marchandiomyces corallinus is a Basidiomycota fungus, of the Coticiales order. It has bright pink coralloid sclerotia on dead and dying areas of the host thallus. Widespread and often common on a number of different lichen hosts, especially Parmelia and Physcia species, frequently causing extensive die-back of Parmelia saxatilis on walls and boulders.

Habitat:

On a Holm oak twig

Notes:

In the first picture there are other lichens: Parmelia sulcata, caloplaca ferruginea and Evernia pruniastri. 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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2 Comments

arlanda
arlanda 11 years ago

I changed the first picture

arlanda
arlanda 11 years ago

I just added one more picture

arlanda
Spotted by
arlanda

Alcobendas, Madrid, Spain

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

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