Observation 103591: Arthonia albopulverea Nyl.

When: 2012-01-18

Collection location: Secret Cove, Palos Verdes, Los Angeles Co., California, USA [Click for map]

33.7401° -118.3735° 53m

Who: Jason Hollinger (jason)

Specimen available

HABITAT grove on top of hill overlooking sea; SUBSTRATE limb of dead unknown shrub; ASPECT shaded; NOTES whitish crust, K- C- KC- UV- 350nm, black erumpent elliptical to subrotund strongly convex epruinose black apothecia, epihymenium black to slightly greenish unchanged in K, hymenium grayish to hyaline I+r KI+b to golden; SPORES 8 per ascus, textured inside?, 0-3-septate? (hard to see though at least some clearly 1-septate), 12-14 × 3-5 µm.


Nice patch, with reddish stain.
At 30x, stacked.

Proposed Names

-29% (1)
Recognized by sight
87% (1)
Eye3 Eyes3
Used references: det. by K. Knudsen

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2012-08-01 17:48:27 PDT (-0700)
Last modified: 2012-08-18 23:55:40 PDT (-0700)
Viewed: 13 times, last viewed: 2017-06-13 08:08:08 PDT (-0700)
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