Pileus thin, convex, then becoming plane, obtuse, often more or less depressed, never umbonate, dry, at length minutely rivulose or radially wrinkled, but never striate, yellowish-ochre, then pale tan-colour, 2.5-5 cm. across; gills adnexed, crowded at first, becoming rather distant as the pileus expands, about 4 mm. broad, at first brownish, then dingy-cinnamon; spores dingy-ferruginous, elliptical, 10-12 x 4 - 5 µ; cystidia fairly numerous, 30-50 x 8 -10 µ; stem 5-8 cm long, 2-4 mm thick, somewhat flexuous, silky, yellowish, base slightly bulbous, stuffed with a distinct pith.

New Zealand. Australia, Ceylon, South Africa, Europe, Siberia, United States.

Among grass.

Allied to Naucoria sideroides. For distinctive features, see note under last-named species.