Holotype (K): 'Butterfly, Wellington, N.Z.; leg. Stevenson. 7.V111.1949'. - Herb. HK. ZT 67/115 (PDD 27021): 'Kowai River, Mt. Grey, prov. Canterbury, N.Z.; leg. Horak, 20.1X.1967'.

Pileus 10-20 mm diam., conical, umbo small, sharp, rarely absent, papillate, bay brown or dark brown, drying paler, striate, hygrophanous, dry, radially fibrillose. Lamellae (L 8-12, 1 3) free or slightly adnexed, distant, deep pink, gill edge concolorous. Stipe 30-60 x 1.5-2 mm, cylindrical, grey-brown, sometimes with white weft at the base, fragile, hollow, glabrous, single. Context brownish. Odor unpleasant. Taste mild.
Spores 10-14.5 x 10-14 µm, subglobose, 5-6-angled. Basidia 40-60 x 11-16 µm, 4-spored. Cheilo- and pleurocystidia none. Cuticle a cutis of repent, cylindrical hyphae (5-24 µm diam.), membrane not gelatinized, thin-walled, encrusted by brown pigment. Clamp connections present or absent.

On soil in forests (under Nothofagus solandri). New Zealand.

Stevenson 1962: 1.c.

The name of this species is in some ways misleading because the pileus is not truly convex but practically always has a well-pronounced umbo. E. convexum is well characterized by its large, subglobose spores, the papillate pileus and the deep pink and free lamellae.

[Notes from Kew Type specimen, PRJ 2010] Filed in K as Nolanea, a second Stevenson collection in K, GS 426