Observation 189667: Lecanora cenisia Ach.

Proposed Names

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Recognized by sight
57% (1)
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Used references: Jason Hollinger ID

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Microscopic details
By: Jason Hollinger (jason)
2015-01-24 00:36:03 CST (-0600)

Spores way too small (whole thing too small, scale hard to get from photos) for Ochrolechia. Instead epihymenium coarsely granular on top, spores ~10-12×5-6µm, ampithecium filled with fine POL+ crystals but no large insoluble crystals seen.

Lecanora definitely an option
By: Jason Hollinger (jason)
2014-11-27 17:42:30 CST (-0600)

But don’t rule out the corticolous Ochrolechia species “switching sides” and growing occasionally on rock. It does happen. Not sure why it’s so rare for crustose lichens in general to be “ambidextrous” like that, but Ochrolechia has demonstrated a knack for it.

None in Wisconsin on Rock according to Thomson.
By: Andrew Khitsun (Andrew)
2014-11-27 17:35:08 CST (-0600)

But I don’t know what else to call it – maybe some type of Lecanora?

Don’t seem to be many Ochrolechia on rock
By: Jason Hollinger (jason)
2014-11-27 17:20:07 CST (-0600)

But chemistry is still required. Good news is Jim should be able to make short work of it. Ozarks flora suggests O. africana and O. trochophora. I’ve seen the latter on rock a few times before. Might be additional ones up there, though, of course. What does the WI flora say?

Created: 2014-11-26 19:48:27 CST (-0600)
Last modified: 2015-01-23 22:30:26 CST (-0600)
Viewed: 44 times, last viewed: 2016-10-27 14:18:22 CDT (-0500)
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