Growing on siliceous rock.
Thallus crustose, whitish gray, cracked-areolate, areolas slightly convex, with a black prothallus, slightly pruinose. Apothecia black, numerous, isolated but sometimes close and then become fusioned, with a thick concolor rim. Spores colourless, simple, guttulate, with average dimensions of Me = 16.8 × 8.6 µm ; Qe = 2 (N=23).
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Created: 2012-04-19 16:24:13 PDT (-0700)
Last modified: 2012-04-19 16:24:47 PDT (-0700)
Viewed: 80 times, last viewed: 2017-06-12 20:07:12 PDT (-0700)