Lecanora campestris (Schaer.) Hue
L. subfusca var. campestris Schaerer, Lich. helv. spic.: 391 (1839).
L. limosescens Zahlbr., Denkschr. Akad. Wiss. Wien math.-naturwiss. Kl. 104: 343 (1941).
L. limosescens. Lectotype: New Zealand. Otago, Otago heads near Dunedin, on coastal rocks. J.S. Thomson (T 1020) ZA 3940, CHR 241776! The material in CHR consists of a few minute crumbs, and of this J. Scott Thomson has written on his habitat slip "...Even to half of my kingdom, Yea and more than half have you got..." This no doubt refers to the fact that Thomson sent the better sample of material to H.H. Allan who then passed it on to Zahlbruckner for description.
Thallus cream-white or pale buff or greyish-white, granular-verrucose, ± continuous or areolate-cracked, areolae convex, minute, spreading in irregular patches 1-4 cm diam. Apothecia crowded, ± innate to sessile and constricted at base, 0.2-0.8(-1.2) mm diam., margins concolorous with thallus, entire to crenulate or flexuose, disc dark red-brown, matt, epruinose, plane to subconvex-undulate. Epithecium granular, red-brown, 8-13 µm thick. Hymenium colourless, 80-90 µm tall. Paraphyses discrete, simple, dense, 1.5 µm diam., apices brown, capitate, to 5.1 µm diam. Asci clavate. Ascospores biseriate, ellipsoid, ends rounded, straight, 10-13.6 × 5.1-6.8 µm. Chemistry: Atranorin, gangaleoidin and thamnolic acid (tr.).
N: North Auckland, Little Barrier I:, on coastal rocks (B.W. and G.C. Hayward). S: Canterbury, Upper Rakaia River, on schist rocks (AJ. Healy 62/276 - 9/9/1962), Otago (Otago Heads near Dunedin on coastal rocks).
Cosmopolitan
