Ann. Naturh. Hoffm. 30: 29 (1916).
Synonyms: Index Fungorum
Protolog: Data lacking.
Thallus: crustose, areolated or areolated-squamulose, forming patches to 2-5 cm diam., thick, dark red-brown; areoles plane and even, angular, 0.4-2 mm diam., circumference sublobate, with dark brown undersides. Algal layer 70-120 µm thick, continuous or in groups separated by strands of parallel hyphae. Medulla thick, contains many crystals and substrate particles. Apothecia rare to rather numerous, immersed, usually solitary, sometimes 2-3 to each areole, without thalline margine. Disc on level with the thallus, plane, granular, 0.5-1 mm diam., concolorous with the thallus or darker. Hymenium colorless, 75-120 µm tall. Epithecium brown. Hypothecium 25-35 µm tall, colorless or greyish. Exciple 15-20 µm thick, composed of parallel radiating hypothecial hyphae, colorless except for the brown-pigmented exterior cell walls. Paraphyses coherent, septate, 2 µm wide at the base, with brown apical cells to 4 µm wide. Asci 55-75 x 14-17 µm, 100-spored. Ascospores subglobose or globose, 3-5 µm diam. (Temina et al. 2005: 439).
Photobiont: chlorococcoid (Temina et al. 2005: 439).
Chemistry: Thallus K-, cortex C+ red (a very thin line of coloration is formed at the upper part of the cortex below the brown region); hymenium I+ blue (Temina et al. 2005: 439).
Ecology: On calcareous and basalt rocks in open and dry sites (Temina et al. 2005: 439). Granitic or volcanic rocks (Magnusson 1929 a).
Molecular data: Genbank
Distribution: Armenia, Egypt, Iraq, Israel, Jordan, Kyrgyzstan, Mongolia, Russia, Syria, Turkey Database
Note:
Type locality: Data lacking.
Barcode: Data lacking.
Coordinates: Data lacking.