Bacidia allotropa (Nyl.) Zahlbr.
Lecidea allotropa Nyl., Flora 48: 339 (1865).
L. deposita Nyl., Lich. N.Z.: 91 (1888).
Lectotype: New Zealand. Otago, Dunedin, ad saxa schistosa. W.L. Lindsay, E!
Lecidea deposita. Lectotype: New Zealand. Sine loco (prob. Wellington). Charles Knight, 22.3.82 ex Herb. J.M. Crombie, BM!
Thallus forming a thin film over soil, rock or clay, 1-5 cm diam. olivaceous or brownish often ± blackened, minutely granular or effuse, occasionally areolate in parts and lifting from substrate. Apothecia black, plane or convex, 0.1-0.6 mm diam., epruinose, matt or shining, with a thin, concolorous margin, or immarginate. Epithecium blue-black, 5-13 µm thick. Hymenium colourless, c. 45 µm tall. Hypothecium colourless or pale straw-coloured. Ascospores 3-septate, oval to oblong-ellipsoid, ends rounded, 10.2-12(-13) × 3.4-5 µm.
N: S: Throughout, mainly lowland and coastal, on clay banks or among mosses and on stones in roadside cuttings on consolidated soil.
Endemic