Observation 99471: Punctelia hypoleucites (Nyl.) Krog

When: 2012-07-04

Collection location: Quincy Bluff State Natural Area, Wisconsin, USA [Click for map]

Who: Andrew Khitsun (Andrew)

Specimen available

Proposed Names

57% (1)
Recognized by sight
86% (1)
Eye3 Eyes3
Used references: ID provided by Jim Bennett

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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After all it turned out to be P.hypoleucites , per Jim Bennett
By: Andrew Khitsun (Andrew)
2014-06-25 22:49:58 CDT (-0400)
Yeah, but don’t trust that photographer
By: Jason Hollinger (jason)
2012-07-08 19:53:38 CDT (-0400)

I have it on good authority that he has no clue what he’s doing.

To be sure you’ve gotta check the length of the conidia, I believe. Wheee!

Punctelia graminicola
By: Andrew Khitsun (Andrew)
2012-07-08 19:40:38 CDT (-0400)

P.graminicola has not been found in WI, so far. But according to CNALH map, it’s been found all around us. So this got to be it. Picture-wise, “Ways of Enlichenment” has the photo that superficially looks very much alike. Pending review of the specimen by specialists…

You’ve convinced me
By: Jason Hollinger (jason)
2012-07-08 14:24:30 CDT (-0400)

It’s the most Parmelia-like Punctelia I’ve ever seen, but chemistry + pale lower surface + simple rhizines leave no doubt. (Not to mention I can find no known species of Parmelia which comes close in eastern N. Amer.) When all else is ruled out… This has to be P. hypoleucites (or P. graminicola… did we decide that doesn’t occur in Wisconsin?).

This thing confuses me.
By: Andrew Khitsun (Andrew)
2012-07-07 21:15:52 CDT (-0400)

At first I thought it was Parmelia. But it’s K- on medula, but C+ red on medula. It doesn’t have soredia or isidia, only “baby” apothecia. Maybe Punctelia hypoleucites? But the lobes are not large, instead splitting into what can be called lobules, which the P.Hypoleucites is not supposed to have. Lower surface is very pale, almost white, rhizines are either simple or slightly branching at the end (furkate?). It’s on rock.

Created: 2012-07-07 20:45:49 CDT (-0400)
Last modified: 2015-12-16 14:47:48 CST (-0500)
Viewed: 58 times, last viewed: 2017-06-13 06:24:38 CDT (-0400)
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