Holotype (PDD 27048); Isotype (Herb. HK. ZT 68/203): 'Red Jack Valley, Ngahere, Prov. Westcoast, N.Z; leg. Horak, 21.III.1968'.

Pileus 15-25 mm diam., umbilicate with incurved, not striate margin, dark brown or black and densely covered by small, blue squamules, especially at the centre, dry, not hygrophanous. Lamellae (L 1-18, 1 3) emarginate and with short tooth attached to the stipe, whitish-bluish when young, turning bluish-pink, with fimbriate blue gill edge. Stipe 20-30 x 1.5-3 mm, cylindrical, dark blue, with white mycelium at the base, densely covered with concolorous or fuligenous appressed fibrils, dry, single. Context blue. Odor and taste not distinctive.
Spores 9.5-11 x 6.5-7.5 µm. 5-6-sided. Basidia 25-32 x 10 µm, 4-spored. Cheilocystidia 35-70 x 12-20 µm, fusoid or ampulliform, with long and apically rounded neck, conspicuous blue, plasmatic or vacuolar pigment present, membrane thin-walled. Pleuro- and caulocystidia none. Cuticle a cutis or trichoderm of suberect, fasciculate, cylindrical hyphae (6-10 µm diam.), membrane thin-walled, not gelatinized, with brown (in KOH) plasmatic or vacuolar pigment. Clamp connections absent.

Between mosses on bark of living Dacrydium cupressinum Podocarpaceae). New Zealand.

Pileo 15-25 mm lato, umbilicato, marginem incurvo, fuligineo squamis minutis nigrocoeruleis instructo, sicco, haud striato. Lamellis emerginatis, primo albido-coeruleis dein coeruleo-roseis, acie fimbriata coeruleaque instructis. Stipite 20-30 x 1.5-3 mm, cylindraceo, pileo concolori, fibrillis obscurioribus obtecto, sicco, pleno. Odore saporeque nullo. Sporis 9.5-11 x 6.5-7.5 µm  5-6-angulatis. Basidiis 4-sporigeris. Cholocystidiis 35-70 x 12-20 µm, fusoideo-ampullaceis, pigmento coeruleo impletis. Epicute ex hyphis suberectis cutem aut trichodermium formantibus, pigmento brunneo plasmatico vacuolatove instructis. Septis defibulatis. Inter muscos ad lignum Dacrydii cupressini. Novazelandia.

This species resembles E. melanocephalum Stev. but the carpophores do not have green colours. Microscopically the two taxa are also separated by their differently shaped cheilocystidia and by the structure of the cuticle.

Holotypus (PDD 27048): 'Ngahere, N.Z.; leg. Horak, 21;III.1968'.