Holotype (PDD 27051); Isotype (Herb. HK. ZT 69/221): 'Doon River, Middle Fiord, Lake Te Anau, Fiordland N.P., N.Z.; leg. Horak, 3.IV.1969'.

Pileus 12-20 mm diam., umbilicate, with distinct conical papilla at the depressed centre, striate margin incurved, green, fading in aged specimens, covered with small appressed squamules, dry, hygrophanous. Lamellae (L 10-13, 1 3), emarginate or slightly decurrent, greenish when young becoming yellow-green with pinkish-brown tinge, gill edge fimbriate and dark blue. Stipe 30-40 x 1-1.5 mm, cylindrical, slender, yellowish, glabrous, dry, fistulose. Context greenish-olive. Odor and taste not distinctive.
Spores 9.5-11 x 6-8 µm, 5-6-sided. Basidia 23-28 x 9-10 µm, 4-spored. Cheilocystidia cylindrical-articulate, terminal cell (25-50 x 8-12 µm) apically rounded, with thin-walled membrane, conspicuous greenish-blue plasmatic pigment present. Clamp connections abundant.

On soil in forests (under Nothofagus spp., and Leptospermum spp.). New Zealand.

Pileo 12-20 mm lato, umbilicato, sed papilla conspicua instructo, viridi, squamis concoloribus adpresse obtecto, sicco, striato, hygrophano. Lamellis emarginatis, ex viridi luteo-brunneis reflexo roseo tinctu, acie fimbriata et coerulea instructis. Stipite 30-40 x 1-1.5 mm, cylindraceo, luteo, glabro, sicco, fistuloso. Caro viridi-olivacea. Odore saporeque nullo. Sporis 9.5-11 x 6-8 µm, 5-6-angulatis. Basidiis 4-sporigeris. Cheilocystidiis 25-50 x 8-12 µm, articulato-cylindraceis, pigmento viridi-coeruleo instructis. Epicute ex hyphis erectis vel suberectis palisadam formantibus, pigmento viridi impletis. Septis fibulatis. Ad terram in silvis. Novazelandia.

The distinctive characters of this species include the green colour of the papillate-umbilicate pileus, blue gill edge and cylindrical, articulate cheilocystidia. Weathered carpophores are suggestive of E. chloroxanthum Stev. which lacks the papilla and cheilocystidia.

Holotypus (PDD 27051): 'Doon River, Lake Te Anau, N.Z.; leg. Horak, 3.IV.1969'.