Flora of New Zealand Series

Parmelia texana Tuck., Am. J. Sci. Arts ser. 2, 25: 424 (1858).

Thallus closely attached, 6-12 cm diam., corticolous and saxicolous. Lobes sublinear to subirregular, apices rounded 3-5 mm wide. Upper surface ashy white, plane to wrinkled, usually deep rimose, sorediate. Soralia laminal, punctiform to capitate, partially pustulate, soredia, whitish or grey-white, coarse, granular. Lower surface black with a narrow, brown, naked, marginal zone. Rhizines sparse to moderate, black, simple. Apothecia not seen. Chemistry: Cortex K ± yellow; medulla K-, KC-, C-, Pd-. Divaricatic acid and atranorin.

N: South Auckland (near Te Aroha). On rocks in farmland, near banks of stream. Very much undercollected.

Cosmopolitan