Flora of New Zealand Series

Thallus thin, lobate, orbicular to spreading, 1-5(-8) cm diam., corticolous, upper surface brown, greyish-brown or pale grey with varying amounts of pubescence, particularly on the backs of the apothecia, wrinkled, matt or shining, ± faveolate and often ± maculate (×10 lens), margins indented, broadly lobulate or denticulate, phyllidiate. Phyllidia terete to ± flattened to 1 mm diam., mainly marginal, occasionally spreading over surface. Lower surface black or dark brown, tomentose or densely pubescent, rarely in part glabrous. Apothecia common, to 8 mm diam., rounded to reniform, with a thin, dentate thalline margin, disc red-brown, matt or shining. Ascospores pale reddish-brown, 3-septate, 20-25 × 6-9 µm. Chemistry: Hopane-7α, 22-diol, 7β-acetoxyhopane-22-ol and unidentified pigments.

S: Nelson (Lake Rotoiti) and north of Westport, Canterbury (Boyle River). In moderate to deep shade in moist, humid environments on bark of Leptospermum and Dacrycarpus. Still very much undercollected in New Zealand.

Cosmopolitan