Flora of New Zealand Series

≡Parmelia subtinctoria Zahlbr., in H. Handel-Mazzetti, Symb. Sin. 3: 193 (1930).

≡Rimeliella subtinctoria (Zahlbr.) Kurok., Ann. Tsukuba Bot. Gard. 10: 10 (1991).

≡Canomaculina subtinctoria (Zahlbr.) Elix, Mycotaxon 45: 477 (1997).

Description : Flora (1985: 361).

Chemistry : Cortex K+ yellow; medulla K+ yellow→dark-red, C−, KC+ pink, Pd+ orange; containing atranorin, chloroatranorin, norlobaridone, salazinic acid and ±usnic acid (tr.).

N: Northland (including Three Kings Is), South Auckland (Kaimanawa Ra., Waipakihi Valley), Hawke's Bay (Wairoa), Taranaki (New Plymouth). Rather rarely collected, mainly from coastal rocks and trees in northern localities. Known also from Europe, North America, Asia, and Australia (Kurokawa & Lai 2001; Nash & Elix 2002a; Wolseley et al. 2002; McCarthy 2003c, 2006).

Pantropical

Illustrations : Flora of Australia55 : 194, fig. 68 – as Rimeliella subtinctoria; Brodo et al. (2001: 211, pl. 182).

Parmotrema subtinctorium is characterised by: the grey-green, spreading thallus which is white-maculate (×10 lens); the simple or branched isidia; and the presence of salazinic acid and norlobaridone in the medulla.