Observation 11720: Physconia isidiigera (Zahlbr.) Essl.
When: 2007-02-14
Herbarium specimen reported

Notes: Very common in southern California, it seems. Distinguished by heavily pruinose, whitish to greyish to brownish, conspicuously squarrose black rhizines, and most importantly, coarse soredia along margins, becoming confluent in center of old thalli, especially in dry situations.

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Used references: Nash’s Sonoran Flora

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Created: 2008-09-30 22:25:04 CDT (-0400)
Last modified: 2008-09-30 22:25:04 CDT (-0400)
Viewed: 64 times, last viewed: 2016-10-27 17:13:43 CDT (-0400)