When: 2018-06-08

Collection location: Morro Bay, California, USA [Click for map]

35.3668°N 120.8267°W 37m [Click for map]

Who: J-Dar

Specimen available
Collection number: Jason Dart 1019

On old wood ranch fence on coastal foothills just east of the City of Morro Bay, along Highway 1.
Thallus well developed, dark gray, of convex areoles. Apothecia deeply sessile, black, epruinose, irregularly shaped, convex, without thalline margin. Epihymenium K+V. Couldn’t get C+ but POL+ crystals indicate gyrophoric acid is present in at least a low concentration. Asci broadly clavate, short.
Spores hyaline, simple to 1(2) septate. Never 3 septate, often curved. Average size 8.8×2.6 (n=4).
Occurs with Lecanora simeonensis (observation 320125) and many others.


K+V epihymenium, 400x
Crappy pic of spore

Proposed Names

57% (1)
Based on microscopic features: Spores 0-1 septate
Based on chemical features: Epihymenium K+V, POL+ indicated gyrophoric acid presence

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= Observer’s choice
= Current consensus


Add Comment
Perfect example of POL+ crystals in hymenium from gyrophoric acid
By: Jason Hollinger (jason)
2018-06-23 19:02:50 CDT (-0400)

Created: 2018-06-23 17:08:24 CDT (-0400)
Last modified: 2018-06-23 19:02:52 CDT (-0400)
Viewed: 25 times, last viewed: 2019-08-23 16:00:51 CDT (-0400)
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