Parmotrema tinctorum
≡Parmelia tinctoria Despr. ex Nyl., Flora 55: 547 (1872).
Description : Flora (1985: 362)
Chemistry : Cortex K+ yellow; medulla K−, C+ red, KC+ red, Pd−; containing atranorin, chloroatranorin, lecanoric acid (major) and orsellinic acid (tr.).
N: Northland (Three Kings Is to Poor Knights Is and Cuvier I., Whangarei). A conspicuous and moderately common lichen on rocks and shrubs and on trees (Cordyline, Metrosideros excelsa, Leptospermum scoparium, Vitex lucens) in northern coastal habitats. Widespread in tropical and temperate regions including Africa, Socotra, Asia, Indonesia, the Pacific and North, Central and South America, and Australia (Elix 1994p; Louwhoff & Elix1999; Kurokawa & Lai 2001; Becker 2002; Louwhoff & Elix 2002b; Nash & Elix 2002g; Wolseley et al. 2002; McCarthy 2003c, 2006; Mies & Schultz 2004).
Pantropical
Illustrations : Swinscow & Krog (1988: 194, fig. 93); Louwhoff & Elix (1999: 125, fig. 73); Brodo et al. (2001: 104, pl. 86; 502, pl. 586).
Parmotrema tinctorum is characterised by: the corticolous/saxicolous habit; the broad-lobed, loosely adnate thallus; the simple, granular-papillate to cylindrical isidia; and the presence of lecanoric acid (C+ red) in the medulla.
