Observation 65524: Lichen P. Micheli

When: 2011-04-14

Collection location: Davis, California, USA [Click for map]

Who: Byrain

No specimen available

All photos are of one rock.


Proposed Names

57% (1)
Recognized by sight
28% (1)
Recognized by sight

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Add Comment
By: Byrain
2011-04-15 11:07:11 PDT (-0700)

Looks like another I’ll have to come back to, the rock is near home and large enough that I doubt it will be going anywhere soon.

One of the C. arenaria group maybe?
By: Jason Hollinger (jason)
2011-04-14 21:48:46 PDT (-0700)

There are six species listed in the Sonoran Flora with “scant or not evident” thallus. C. arenaria and C. marmorata have “dark red-brown” apothecial discs, C. luteominia has thick rims, C. ludificans has a faint translucent yellowish thallus, then there are two orange-disked ones which differ only in spore size: C. nashii and C. crenulatella. Good luck!