Bryologist 82, 2: 132 (1979).

Basionym: Lecanora floridana Tuck., Proc. Amer. Acad. Arts & Sci. 5: 402 (1862) [1860].

Thallus: crustose, continuous, without elongated lobes; prothallus present, black; surface gray, smooth, without asexual propagules. Apothecia adnate, 0.2-0.4 mm in diam., lecanorine; disc dark brown or black, flat, epruinose; margin persistent, flush or slightly raised; thalline margin present, concolorous with thallus; proper margin visible, concolorous with disc; parathecium elongate to oval cells; exciple below hypothecium irregular hyphae; epihymenium brown or gray, K+ violet, 10%N + violet, cN+ violet; hymenium hyaline, 60-85 µm tall; paraphyses 1-2 tip cells slightly swollen, with few branches; subhymenium hyaline. Asci cylindrical, 8-spored. Ascospores hyaline, 2 locules, ellipsoid, 11-14 x 5.5-7 µm, isthmus (4-)5.5-7(-8.5) µm, spore end wall thin. Pycnidia not observed (Nash et al. 2001: xx).

Photobiont: Data lacking.

Chemistry: Apothecial margin K+ violet, 10% N+ violet, cN+ violet, C-; thallus K-, 10%N-, cN-; thalloidima green (Nash et al. 2001: xx)

Ecology: On bark.