The material (Sinclair and Haast 1860-61) is too fragmentary for a sound taxonomic study.

Pileus hemispherical, then convex, regular, obtuse, at length expanded and upturned, often umbonate, usually wavy, and sometimes excentric, even, glabrous, dry, not at all hygrophanous, reddish flesh-colour, at length whitish, about 2.5 cm. across; flesh thin, tough, snow-white; gills rounded behind and almost free, horizontal, closely crowded, broadest behind, 2-3 mm. broad, pure white; stem up to 2.5 cm. long, sometimes very short, 2-4 mm. thick, apex thickest, and narrowing gradually towards the base, pale reddish-pink, becoming almost white, apex somewhat pruinose, tough and fibrous, almost cartilaginous, rigid, stuffed, then hollow.

Middle Island, New Zealand. Europe.

Among grass, in woods, &c.

Agreeing with the genus Collybia in general habit and structure of the stem, but retained in Tricholoma on account,, of its evident affinity with such species as Tricholoma paenium and T. ionides.