Lichen - Physconia grisea, click for a larger image
Picture ©2010- -
Click any photo for a larger image
Lichen - Physconia grisea, click for a larger image
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, other Lichen species in Brickfields Park.

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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