Heterodermia podocarpa
≡Parmelia podocarpa Bél., Voy. Indes Orient. Bot. II. Crypt.: 122 pl. E, fig. 1 (1834).
Description : Flora (1985: 185)
Chemistry : Cortex K+ yellow; medulla K+ yellow→red, C−, KC+ red, Pd+ orange; containing atranorin, zeorin, norstictic and salazinic acids.
N: South Auckland (Pio Pio). S: Nelson (Maruia Valley, Speargrass Flat). On twigs of divaricating shrubs. Known also from Asia, Hawai'i, North, Central and South America, Jamaica, Cuba, China, East and South Africa, and Australia (Kurokawa 1962; Swinscow & Krog 1976b, 1988; Chen & Wang 2001; Moberg & Nash 2002; McCarthy 2003c, 2006; Moberg 2004b).
Cosmopolitan
Illustrations : Kurokawa (1962: pl. 8 fig. 49 – as Anaptychia podocarpa); Swinscow & Krog (1988: 99, fig. 46).
Heterodermia podocarpa is characterised by: the corticolous habit; the compact thallus with an uneven upper surface lacking isidia or soredia; a white, decorticate lower surface; and norstictic and salazinic acids in the medulla (K+ yellow→red).
