Heterodermia speciosa
≡Lichen speciosus Wulfen in N. Jacquin, Collnea bot. 3: 119 (1791).
Description : Flora (1985: 185).
Chemistry : Atranorin, zeorin, ±norstictic acid and three unidentified triterpenoids.
N: Three Kings Is to Wellington. S: Nelson, Canterbury. On trees. Known also from Great Britian, Eire, Europe, Scandinavia, the Azores, Asia, British Columbia, Hawai'i, Mexico, Brazil, East Africa, and Australia (Kurokawa 1962; Swinscow & Krog 1976b, 1988; Goward et al. 1994b; Moberg & Purvis 1997; Aptroot 2002e; Becker 2002; Coppins 2002b; Moberg 2002d, 2004a; Moberg & Nash 2002; Wolseley et al. 2002; McCarthy 2003c, 2006; Nimis & Martellos 2003).
Cosmopolitan
Illustrations : Brodo (1981: 88, fig. 46); Moberg & Holmåsen (1982: 194); Wirth (1987: 209; 1995a: 419); Goward et al. (1994b: 55, fig. 2B); Malcolm & Galloway (1997: 121, 175); Malcolm & Malcolm (2000: 132); Brodo et al. (2001: 340, pl. 366); Nordic Lichen Flora Vol. 2 (2002: 95).
Heterodermia speciosa is characterised by: the corticolous habit; the marginal soralia and the pale upper surface; and the corticate lower surface.
