Observation 276294: Lecanora muralis group

When: 2017-05-05

Collection location: Monterey Co., California, USA [Click for map]

35.8584°N 120.3119°W 482m [Click for map]

Who: J-Dar

Specimen available

On low rock boulders, rather common. This collection is interesting for the orange presumed Caloplaca growing on it.


Proposed Names

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

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Add Comment
That orange thing is really strange!
By: Jason Hollinger (jason)
2017-06-16 19:02:05 CDT (-0500)

The close-up of the lobe-tips is very helpful. It makes it look like Lecanora garovaglii. Except that it looks like you’ve got a jagged algal layer. But I trust the algal layer in a thin section of the lobe tips more than the algal layer under an apothecium. If the algal layer really is conspicuously jagged like it looks like it is, then this is probably true Lecanora muralis.

Additional info
By: J-Dar
2017-06-16 18:02:47 CDT (-0500)

Thallus light tan, shiny, lobate, K+Y. Lobe tips darkening at margins, with cracked white pruina. Apothecia crowded in center, disk light brown, thallin margin concolorous with thallus, becoming flexuous and convex; disk & rim K+Y. Hymenium dingy hyaline, POL-, hypothecium hyaline,epihymeium brown.

Spores 8/ascus, hyaline, simple, ellipsoid. 12.8×6.5, 10.4×5.9, 13.7×6.5.

Could be a basidio parasite, too
By: Jason Hollinger (jason)
2017-05-15 21:13:45 CDT (-0500)

I would expect to see at least thin rims if it were Caloplaca.

Created: 2017-05-11 22:58:23 CDT (-0500)
Last modified: 2017-06-16 18:01:43 CDT (-0500)
Viewed: 50 times, last viewed: 2018-08-25 23:48:41 CDT (-0500)
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