Holotype (PDD 27078); Isotype (Herb. HK. ZT 68/200): 'Red Jack Valley, Ngahere, Prov. Westcoast, N.Z.; leg. Horak, 21.III.1969'. - Herb. HK. ZT 69/159: 'Ulva Island, Stewart Island, N.Z.; leg. Horak, 23.III.1969'.

Pileus 20-45 mm diam., conical when young becoming conico-convex or campanulate, radially splitting, pink, glabrous, dry, not striated. Lamellae adnexed or slightly emarginate-adnexed, pink, ventricose, gill edge concolorous, occasionally serrate. Stipe 35-80 x 4-6 mm, cylindric, equal, pink, dry, glabrous, hollow fragile, single. Context whitish. Odor and taste not distinctive. Chemical reactions on pileus: KOH and HCl- negative. Spores 6.5-7.4-5 µm, ovoid, smooth, inamyloid. Basidia 28-40 x 7-8 µm, 4-spored. Cystidia absent. Cuticle consisting of repent, cylindric, not gelatinized hyphae (1-4 µm diam.) forming a cutis. Clamp connections absent.

In soil under Podocarpus, Dacrydium, Weinmannia, etc. New Zealand.

Pileo 20-45 mm lato, conico dein convexo-campanulato, roseo, sicco, glabro. Lamellis adnexis vel subadnatis, roseis. Stipite 35-80 x 4-6 mm, cylindrico, pileo concolori, sicco, cavo, fragili. Sporis 6.5-7 x 4-5 µm, ovoideis. Cystidiis nullis. Epicute ex hyphis cylindraceis repentibusque cutem formantibus. Septis defibulatis. Ad terram in silvis virgineis. Novazelandia.

This species is close to H. mavis (Stev.) from which it is distinguished by its pink colour and the smaller spores. Both species are similar in habit and lack clamp connections.

Holotypus (PDD 27078): 'Red Jack Valley, Ngahere, N.Z.; leg. Horak, 21.III.1968'.