on rotting leaves, stems, and bark (Dicksonia, Senecio benettii Simpson et Thompson, Nothofagusfusca (Hook.f.) Oerst. New Zealand. Argentina: Tierra del Fuego, Ushuaia, Valle Glacier Martial. 24.111.1975, leg. Horak (LPS 37862. holotype). New Zealand: South Island: Canterbury, Mt Grey, Kowai Bush, 20.1X. 1967, leg. Horak (ZT 67/114). Nelson, Shenandoah Saddle, 10.11.1969, leg. Horak (ZT 69/50). Stewart Island, between Christmas Village and Mt Anglem. 15. III. 1969, leg. Horak (ZT 69/136).

Pileus -10 mm, hemispheric to convex becoming plane; cinnamon to pale argillaceous or pale brown; minutely velutinous or velvety; dry, membranaceous, margin distinctly striate when moist, veil remnants absent. Lamellae (L 2-8, -3), distant to moderately crowded; adnexed to adnate, sometimes subdecurrent, ventricose in mature specimens; argillaceous with rust-brown tinge, edge albofimbriate. Stipe -8 x -0.5 mm, cylindric, often eccentric, curved, equal; whitish or concolorous with pileus; pruinose at apex, glabrous towards base, dry, fragile, solid, single in groups, veil remnants absent. Context membranaceous, tough. Odour and taste not distinctive. Spores 5-8 x 4-5 µm, distinctly limoniform, yellow-brown, membrane thin-walled, smooth, germ pore absent. Basidia 20-28 x 5-8 µm, 4-spored. Cheilocystidia 35-80 x 4-8 µm, subfusoid with subcapitate to capitate apex, membrane thin-walled, hyaline, clamp connection at basal septum. Pleurocystidia absent. Caulocystidia like cheilocystidia. Cuticle an irregular cutis, terminal cells cystidioid, dermatocystidia in shape and size like cheilocystidia, membranes of hyphae not gelatinised, encrusted with brownish pigment. Clamp connections present.

Horak (1980: loc.cit.).

Flammulaster disseminatus Horak (1980), originally described from Tierra del Fuego (Argentina), is recognised best by the very small carpophores which are found growing in dense groups on decaying bark of trees or on rotten leaves of ferns or herbaceous plants