Leptogium limbatum F.Wilson
Thallus broadly lobate, orbicular to spreading, to 8 cm diam., distinctly bluish-grey, not brownish, muscicolous or terricolous or corticolous. Lobes broadly orbicular, papery, margins entire, wavy, sometimes minutely lobulate. Upper surface smooth not wrinkled, matt or shining, often ± maculate (×10 lens). Lower surface densely white-tomentose, often with a narrow, marginal, glabrous zone. Apothecia occasional to abundant, sessile to subpedicellate, round to irregular, 0.2-2 mm diam., disc matt, red-brown, concave to plane to subconvex, thalline exciple very thin, entire, concolorous with thallus. Ascospores fusiform with pointed apices, 25-35 × 8-10 µm, submuriform.
S: Nelson Lakes National Park (Lake Rotoiti). Otago (Hidden Falls Stream). Distinguished from L. menziesii (the two species occupy similar habitats) by its blue colour (it is never browned), larger spores and smaller apothecia. It is probably more widely distributed in alpine grasslands in New Zealand.
Austral
