Polycauliona candelaria (L.) Frödén, Arup & Søchting
Nordic J. Bot. 31, 1: 51 (2013).
Basionym: Lichen candelarius L., Sp. Pl. 2: 1141 (1753).
Description: Lichen. Thallus foliose to subfruticose, forming small cushions up to 3 cm wide or extensive colonies, lobate; lobes dorsiventral to subterete, 0.2-0.5 mm wide; tips 0.1-0.3 mm wide, ±terete; upper surface yellow to light orange, smooth to somewhat coarse, often wrinkled, sorediate; soredia granular, blastidious, marginal to submarginal or XANTHORIA at lobe tips; medulla white, reticulate, with short to elongate hyphae; lower surface white to yellow, somewhat wrinkled, rarely with short, white hapters. Apothecia rare, laminal or appearing terminal, stipitate, up to 4 mm in diam.; margin smooth but often sorediate or lobulate; disc orange; epihymenium brown, c. 10 µm thick; hymenium hyaline below, 60-90 µm tall; hypothecium hyaline to pale brown, 25-70 µm thick; paraphyses simple or branched, cylindrical, septate; asci clavate, 8-spored. Ascospores ellipsoid, polarilocular, hyaline, 12-15 x 5.5-8 µm; septum 3-6 µm wide. Pycnidia common, immersed, concolorous with upper surface or slightly darker; conidia ellipsoid, 2.3-3 x 1-1.5 µm. (Nash et al. 2001: xx).
Photobiont: Data lacking.
Chemistry: Upper surface K+ purple, C-, KC-, P-; parietin (major), fallacinal, emodin, teloschistin, parietinic acid. (Nash et al. 2001: xx).
Ecology: On bark, rock, and detritus, generally sun-exposed and nutrient rich.
Distribution Database: Distributions
Distribution Database: Discover Life
Picture Database: Tropical Lichens
Molecular Database: Genbank
Synonym Database: Index Fungorum
Synonym Database: Mycobank