Click for a larger photo

Picture ©2010-,

Click for a larger photo

Picture ©2010 Kay Newbury University of Reading

Lichen - Physconia grisea
Family - hysciaceae

Many thanks to Kay Newbury at Reading University for the identification of this Lichen species - Physconia grisea - a grey-brown "leafy" lichen that grows usually grows on bark. The tips of each lobe are covered in small white granules called prunia that look like a dusting of sugar. Occurs on bark - occasionally on rock.

Basic species description for Lichens.

A foliose lichen. Thallus is pale grey or brownish when dry but greener when wet, usually coarsely pruinose. Fan-shaped, overlapping lobes, under surface whitish with pale, simple rhizines ( the only Physconia species with pale). Granular soralia may spread to cover the thallus centre. Apothecia are rare. Found on nutrient-rich and often dusty, rocks, cement and trees.

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