Proposed Names

2% (2)
Recognized by sight
76% (2)
Used references: Jason Hollinger ID

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Missing details
By: Jason Hollinger (jason)
2015-01-25 07:46:13 PST (-0800)

Hard to see in photos, but there is a well-developed thallus of sparse crenulate areoles. The apothecial rims are mostly parathecium, with only faint bits of thalline margin clinging to the outside edge, mostly below the rims. The parathecium itself is clearly paraplectenchymatous (composed of small angular but roundish cells) in sufficiently thin sections (this alone places it firmly in the C. squamosa group, of which this is the only species in Wisconsin). Spores ~10×5µm.

On top and sides of sandstone blocks and on mortar.
By: Andrew Khitsun (Andrew)
2014-12-14 21:10:23 PST (-0800)