Observation 117700: Sarcogyne regularis Körber

When: 2012-10-28

Collection location: Kettle Moraine State Forest North, Wisconsin, USA [Click for map]

Who: Andrew Khitsun (Andrew)

No specimen available



Proposed Names

29% (1)
Eye3 Eyes3
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Thought so
By: Jason Hollinger (jason)
2012-11-24 17:47:23 PST (-0800)

I just don’t trust my intuition with geology yet. Thanks!

I think the rock is dolomite or limestone.
By: Andrew Khitsun (Andrew)
2012-11-24 16:13:58 PST (-0800)

It was just a slab separated from its original place in the nature and placed at the entrance to the bike trail. But it’s light color indicates limestone or a relative (you can’t see its color in the photos).
There is a chance it’s a sandstone too. I’ll need to revisit this location and double – check the rock and the lichen.

By: Jason Hollinger (jason)
2012-11-24 11:35:13 PST (-0800)

The margins of the apothecia look black (albeit with a white-pruinose outer coating maybe), so I’m thinking Buellia or… ???

Is this on one of those famous Wisconsin calcareous sandstones? Crusts on calcareous substrates often have pruina.

I did it for you!
By: Andrew Khitsun (Andrew)
2012-11-23 16:58:29 PST (-0800)

I mean I flipped through Brodo, but I didn’t find anything similar looking, with bluish apothecia. Maybe one of the species from some big genus, like Rinodina or Lecanora?

I don’t like either name
By: Jason Hollinger (jason)
2012-11-22 23:11:12 PST (-0800)

I wish I had a better suggestion, but this doesn’t look like either. Like you say, Sarcogyne has no thallus at all. And Porpidia albocaerulescens usually has really thin flat apothecia. Without spores to narrow it down… ugh, I can’t bring myself to flip through Brodo just now! There’s gotta be other options…

I’m torn between S. regularis and Porpidia albocaerulescens
By: Andrew Khitsun (Andrew)
2012-11-22 19:26:58 PST (-0800)

The presence of thallus seems to indicate P. albocaerulescens, but apothecia rims are very broad for that species. Please advise.

Created: 2012-11-22 19:20:41 PST (-0800)
Last modified: 2012-11-22 19:24:37 PST (-0800)
Viewed: 49 times, last viewed: 2017-06-14 08:55:52 PDT (-0700)
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