When: 2011-11-06

Collection location: Riverwalk, Baraboo, Wisconsin, USA [Click for map]

Who: Andrew Khitsun (Andrew)

No specimen available

Images

Proposed Names

35% (2)
Recognized by sight
56% (1)
Recognized by sight: white areoles with multiple apothecia hidden within (“cryptolecanorine”)
Used references: Thomson 2003 Lichens of Wisconsin – only lists one white Acarospora, but it’s a poorly-studied genus in that area, and requires microscopy and C test to have a prayer of keying it out in a broader context

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= Observer’s choice
= Current consensus

Comments

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Interesting
By: Jason Hollinger (jason)
2014-11-09 07:20:37 PST (-0800)

Have we found a bit of rocky ground in North American lichenology??

I just added the last (bottom) picture to this array.
By: Andrew Khitsun (Andrew)
2014-11-08 20:13:00 PST (-0800)

It’s a specimen I eventually picked up a year later to ID. Jim Bennett provided that ID as being A.cinereoalba . He crossed my reference to that being equal to A.veronensis . Apart from that disagreement, ID has been confirmed. Some microscopy provided by J.Bennett: K-; Spores 5×2, many per ascus.

A. cinereoalba = A. veronensis acc. to Knudsen 2007 in Sonoran Desert Flora
By: Jason Hollinger (jason)
2012-04-03 17:12:13 PDT (-0700)