Observation 240123: Verrucaria Schrad.

When: 2016-05-25

Collection location: Miner Hill Park, Richland Center, Wisconsin, USA [Click for map]

Who: Andrew Khitsun (Andrew)

Specimen available


Proposed Names

2% (2)
Recognized by sight
-31% (2)
Used references: ID provided by Jim Bennett
Based on microscopic features: Cortex C+r
47% (2)
Used references: Jason Hollinger
Based on microscopic features: thick black lower layer, no C+
56% (1)
Recognized by sight

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= Observer’s choice
= Current consensus


Add Comment
I wouldn’t have even guessed Acarospora
By: J-Dar
2017-10-19 08:50:56 EDT (-0400)

Looks more like Verrucaria or something perethecioid, but I guess there’s apothecia in there somewhere? I keep striking out on the C+R brown Acarospora group, either I’m missing the C+ reaction or I’m only collecting A. veronensis and/or A. elevata and/or A. americana.

I had a feeling this was something else, but JB said it’s A.fuscata
By: Andrew Khitsun (Andrew)
2017-10-18 22:52:34 EDT (-0400)

These are pretty common, but are distinctive color-wise from “normal” A.fuscata