'Physcia' can also refer to...


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(order Lecanorales)

A genus of lichens in which the thallus is foliose and may be grey or greyish-brown. Spores are brown and have 1 septum. Species are found typically on substrates (e.g. bark or rocks) rich in nitrogenous matter (e.g. bird droppings).

Subjects: Plant Sciences and Forestry.

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