Observation 66842: Phaeophyscia rubropulchra (Degel.) Essl.
When: 2009-06-14
No herbarium specimen

Proposed Names

47% (2)
Recognized by sight
77% (2)
Eye3 Eyes3
Recognized by sight: You can see the orange medulla in one place in the forth photo if you look close. I think. Just a few days ago I ran across an enormous patch just like this (but brown and dry) where there was no sign of orange throughout the entire thallus, but upon scratching it in the least — voilá! let there be orange!

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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On rock
By: Andrew Khitsun (Andrew)
2011-05-02 23:54:30 CDT (-0400)

Apart from not scratching those lichens to see if there is any orange inside, my only problem with these lichen is a substrate. I have tons of images of very similar phaeophyscia-like lichen (I think I posted some of them before), but they all grow on rock. Most of the sources say that P.rubropulchra is primarily bark-dwelling lichen, very rarely observed on rock. The lichen in question (or group of similar ones) is very common around here, but almost always on rock. I only have couple of images taken of the bark-living specimen. There are more than dozen of species of Phaeophyscia in WI, but i’d struggle to tell many of them apart. Some of the issues will get cleaar this summer, for I intend to scratch every lichen that looks like this trying to find orange in medula. And many of the specimen grow in places I can revisit (but not the one on this page). I hope to bring some clarity to this group pretty soon.

Created: 2011-05-02 21:51:00 CDT (-0400)
Last modified: 2012-02-23 00:58:31 CST (-0500)
Viewed: 52 times, last viewed: 2016-10-20 17:25:20 CDT (-0400)
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