Lichenologist 39 (05): 451-458 (2007).
Basionym: Data lacking.
Synonym: Index Fungorum
Type: South Africa, Western Cape, De Hoop, epiphytic, 10.10.2002, H. Gansner 360 II (Z+ZT--holotypus).
Barcode: Data lacking.
Coordinates: Data lacking.
Thallus: small, 1-4 cm across, adpressed, yellow; lobes irregularly branched, up to 2 mm long and c. 1.5 mm wide, flat or usually slightly convex; in section 100-150 µm thick, margin thicker, up to 250 µm and with dispersed hyaline hairs up to 50 µm long and 10 µm wide, which are covered with dust, sand granules and other particles (maculae) giving the hallus surface a dirty appearance. Hairs are most clearly visible at growing lobe margins and on young apothecia; they often stich to each other, thus forming soft, spine-like structures, but collapse on older thalline areas. Upper cortex 10-15 µm thick, true paraplectenchymatous, covered with yellow crystals; algal layer 15-25 µm thick; mycobiont-photobiont interface: intraparietal haustoria; medulla rather lax, composed of a network of smooth hyphae 2-3 µm thick, without crystals or oil droplets; lower cortex more or less smooth, locally with very short hyphal protrusions, whitish, 15-20 µm thick, true paraplectenchymatous; hapters rare and mainly laminal. Apothecia located in the central part of the thallus, usually covering the lobes, c. 0.5-1.5 mm diam., regularly rounded to irregularly compressed owing to spatial problems in older thallus areas where numerous mature apothecia are bordering upon wach other; disc darker orange than the thallus, urceolate when young, becoming and remaining flat when mature; thalline exciple with hairs similar to those on the thallus margin, in section paraplectenchymatous, filled with algae; true exciple up to 30 µm thick at the uppermost part, 10-20 µm in the basal part, scleroplectenchymatous; hymenium 40-50 µm high; subhymenium up to 20 µm thick; asci 35-45 x 10-12 µm; paraphyses c. 2 µm diam., the uppermost cells up to 7 µm diam., sparingly with oil droplets, covered with yellow-orange crystals; Ascospores 13-15 x5-6 µm, fusiform with pointed ends, septum 4-5 µm thick. Pycnidia abundant, reddish orange, 100-200 µm diam.; spermatia narrowly ellipsoid, 2.0-2.5 x 0.7-1.0 µm. (Eichenberger, Aptroot & Honegger 2007: 452).
Photobiont: Trebouxia spec.
Chemistry: Chemosyndrome A3 sensu S&oslah;chting (1997) (Eichenberger et al. 2007: 452).
Ecology: Data lacking.
Molecular data: Genbank
Distribution: Database
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