When: 2009-03-21

Collection location: Sunol Regional Wilderness, Alameda Co., California, USA [Click for map]

Who: Debbie Viess (amanitarita)

No specimen available


[admin – Sat Aug 14 02:06:33 +0000 2010]: Changed location name from ‘Sunol Regional Park, Contra Costa County, CA’ to ‘Sunol Regional Park, Contra Costa Co., California, USA’


pinwheel lichen.

Proposed Names

39% (2)
Recognized by sight
70% (1)
Recognized by sight: crustose rimose-areolate thallus with radiating, lobed margins growing on rock
85% (1)
Used references: Sonoran Flora

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= Observer’s choice
= Current consensus


Add Comment
Not many species of this genus to choose from
By: Jason Hollinger (jason)
2009-03-26 05:45:33 EET (+0200)

Gray-brown on rock means either D. radiata (common) or D. weberi (according to Sonoran Flora, I’ve never seen it). See observation 11625. (They differ in microscopic details.)