Observation 194372: Lichen P. Micheli

When: 2014-05-08

Collection location: Pine Glen, Devil’s Lake State Park, 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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I “discovered” Pine Glen last spring.
By: Andrew Khitsun (Andrew)
2014-12-22 12:14:46 PST (-0800)

Will definitely visit more next season – the place is lovely. Will hopefully be able to find specimens of the ones I missed the last season.

I agree
By: Jason Hollinger (jason)
2014-12-22 10:48:34 PST (-0800)

This is a real stumper. The apothecia are completely marginless at all stages… if they are in fact even apothecia. But where are the ostioles if they are perithecia? Arthonia and a couple of other odd genera (e.g., Scoliciosporum) have completely marginless apothecia. But they’re so round and thick and convex and “clean”. In Arthonia they’re usually just essentially irregular stains on the surface. (But then look at odd-balls like A. caesia – which may not even belong in Arthonia – who can say what Arthonia “should” look like?!)

Ugh, and look where it’s growing… It’d take a half hour of hard work to extract this thing from the rock. Phooey. Some things are destined to remain mysteries!

I was almost certain it was Porpidia albocaerulescens from afar,
By: Andrew Khitsun (Andrew)
2014-12-22 08:42:41 PST (-0800)

since that species is very common in the area. Decided to take photo anyway since this specimen was freshly washed by rain and had lots of attractive algal growth on it. Under magnification though, those apothecia betrayed a different species (I think).

Created: 2014-12-22 08:30:53 PST (-0800)
Last modified: 2014-12-22 08:37:36 PST (-0800)
Viewed: 31 times, last viewed: 2017-06-19 13:57:48 PDT (-0700)
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