Pileus somewhat membranaceous, convex, then expanded, umbilicate, and there more especially downy, then squamulose, sometimes glabrous (except the disc), sometimes fibrillose, hygrophanous, at first smoke-colour, or mouse-colour, then livid grey, 2.5-4 cm. across;^, gills adnate, then separating from the stem and becoming free, rather distant, plane, equally narrowed from the stem to the margin, greyish-white, edge quite entire and of the same colour as the remainder; spores elliptical, 10-12 x 6-8 µ; stem 2.5-5 cm long, not more than 2 mm. thick, equal, straight, even, glabrous, cartilaginous, hollow, livid, fuscous, green and blue mingled, &c., base with white down.

New Zealand. Europe.

Among grass.

Some specimens have the pileus squamulose everywhere, some forms resemble a Nolanaea ; pileus hemispherical, then campanulate, disc sometimes with a minute depression; sometimes with a papilla (Fries).

Recorded by Massee, (1898).

These four species [placidum, lampropodum, asprellum, aethiops] have not been collected recently in New Zealand and are not represented in my herbarium. As the material on which the determinations were made over fifty years ago no longer remains at Kew, some doubt may be entertained about the records till these species are collected again.