Holotype (PDD 27045); Isotype (Herb. HK. ZT 68/512): 'Pukekura Park, New Plymouth, N.Z.; leg. Horak, 10.VI.1968'.

Pileus 3-7 mm diam., obtusely convex becoming plane at the centre and subumbilicate, striate near the margin, not recurved, deep yellow, glabrous, dry, hygrophanous. Lamellae (L 8-12,13) broadly adnate to subdecurrent, yellow when young, turning yellowish-pink, gill edge concolorous, not fimbriate. Stipe 12-25 x 1 mm, cylindrical, slender, deep yellow, glabrous, dry, stuffed-hollow, solitary. Context yellow. Odor and taste not distinctive.
Spores 8.5-10 x 6-7 µm, 5-6-angled. Basidia 26-35 x 9 µm, 4-spored. Cheilocystidia 25-50 x 7-9 µm, formed by cylindrical or clavate cells with thin-walled membrane, sometimes encrusted by pigment, sterile zone at gill edge not conspicuous. Pleuro- and caulocystidia absent. Cuticle a cutis of repent, cylindrical hyphae (8-12 µm diam.), membrane not gelatinized, encrusted by yellowish pigment. Clamp connections lacking.

On soil under shrubs in forests. New Zealand.

Pileo 3-7 mm lato, ex pulvinato depresso-plano, subumbilicato, flavo, glabro, sicco, striato, hygrophano. Lamellis late adnatis vel subdecurrentibus, flavis dein flavo-roseis, acie integra instructis. Stipite 12-25 x 1 mm, cylindraceo, tereti, pileo concolori, glabro, sicco, fistuloso. Odore saporeque nullo. Sporis 8.5-10 x 6-7 µm, 5-6-angulatis. Basidiis 4-sporigeris. Cheilocystidiis 25-50 x 7-9 µm, clavato-cylindraceis, hyalinis, inconspicuis. Epicute ex hyphis cylindraceis repentibusque cutem formantibus, pigmento flavido membranis incrustatis. Septis defibulatis. Ad terram in silvis. Novazelandia.

The small, slender fruitbodies and large spores readily separate this species from E. sulphureum Hk. Neither has green or olive colours and they are thus even macroscopically distinguishable from E. chloroxanthum Stev., which is rather common, whereas the two other species are rare.

Holotypus (PDD 27045J: 'New Plymouth, N.Z.: leg. Horak, 10.VI.1965'.

Material. - New Zealand: New Plymouth, Pukekura Park, 10.VI.1968, leg. Horak (PDD 27045, holotype).

Habitat. - On soil in forests. - New Zealand.

Illustrations. - Horak (1973:61).

The small (pileus -7 mm diam.) and fragile carpophores and the deep yellow colours are distinctive for this New Zealand species. The lamellae bear clavate cheilocystidia and the clampless cuticular hyphae are encrusted with the yellowish pigment. For further discussion see Horak (1973:61).