Flora of New Zealand Series

T. monosporum var. patulum Nyl., sensu Knight, Trans. Linn. Soc. Lond. ser. 2, 1: 278 (1877).

Thallus whitish, pale greyish-green or olivaceous-grey, continuous, minutely roughened or arachnoid, effuse or lacking, 2-5 cm diam. Apothecia common, in thalline warts, often 2-3 together, 0.5-1.2 mm diam., pore large, rounded, gaping 0.2-0.9 mm diam., margins entire, slightly raised, crateriform, disc visible, pale white, exciple visible. Ascospores 2 per ascus, brown, muriform, broadly ellipsoid, 93-130(-160) × (30-)34-60 µm. Chemistry: Nil, or a trace of stictic acid.

N: Wellington, though possibly more widespread in northern coastal forest. Material seen collected near Wellington by Knight (BM, WELT, H-NYL) and by Buchanan (BM).

Pantropical

This species is discussed by Salisbury [ Lichenologist 5: 270-271 (1972)] and by Hale [ Smithson. Contr. Bot. 38: 52-53 (1978)].