Ann. Bot. Soc. Zool.-Bot. Fenn. Vanamo 43: 159 (1949).

Basionym: Placodium tominii Savicz, Izv. glav. bot. Sada SSSR: 194 (1930).

Thallus: crustose, areolate, margin slightly lobed or notched, without elongated lobes; prothallus absent; surface orange, smooth, sorediate; soredia fine, in irregular, laminal or marginal soralia; cortex cellular, 15-35 µm thick, granules absent; medulla paraplectenchymatous, without granules. Apothecia rare, adnate, 0.3-0.5 mm in diam., lecanorine; disc orange, flat; margin persistent, raised; thalline margin present, concolorous with thallus; proper margin visible, concolorous with disc; parathecium consisting of radiating hyphae; exciple below hypothecium prosoplectenchymatous; epihymenium golden, K+ red, H-, 10%N-, cN-, C-; hymenium hyaline, 60-70 µm tall; paraphyses 2-3 tip cells swollen, frequently branched; subhymenium hyaline. Asci cylindrical, 8-spored. Ascospores hyaline, 2 locules, ellipsoid, 15.5-18 x 5.5-10 µm, isthmus 1.5-3 µm, spore end wall thin. Pycnidia not observed. Nash et al.(2001: xx)

Photobiont: Data lacking.

Chemistry: Apothecial margin K+ red, H-, 10% N-, cN-, C-; thallus K+ red, H-, 10%N-, cN-, C-; medulla IKI-; parietin, fallacinal, emodin, and teloschistin. Nash et al.(2001: xx)

Ecology: On soil

Molecular data: Genbank

Distribution: Database

Note: