Holotype (PDD 27038); Isotype (Herb. HK. ZT 68/153): 'S of Ahaura, Ngahere, Prov. Westcoast, N.Z.; leg. Horak, 14.III.1968'. - Herb. HK. ZT 67/172: 'Lake Rotoiti, Prov. Nelson, N.Z.; leg. Horak, 25.X.1967'. - Herb. HK. ZT 68/267: 'Moonlight Valley, Paparoa Range, Prov. Westcoast, N.Z.; leg. Horak, 5.IV.1968'. - Herb. HK. ZT 68/299: 'Kaituna Valley, Banks Peninsula, Prov. Canterbury; N.Z.; leg. Horak, 24.IV.1968'. - Herb. HK. ZT 68/404: 'Puponga, N of Collingwood, Prov. Nelson, N.Z.; leg. Horak, 9,V.1968'. - Herb. HK. ZT 69/17: 'Buller Bridge, W of Murchison, Prov. Nelson, N.Z.; leg. Horak, 25.I.1969'. - Herb. HK. ZT 69/213: 'Denton River, Te Anau Downs, Prov. Southland, N.Z.; leg. Horak, l.IV.1969'.

Pileus 10-20 mm diam., conical when young becoming papillate or umbonate, pronounced umbo always present, grey-brown, fading to beige, glabrous or finely fibrillose, strongly striate, dry, hygrophanous. Lamellae (L 10-14, 1 3) free, ventricose, whitish or beige, turning pink, gill edge concolorous. Stipe 20-45 x 1-2 mm, cylindrical, coloured like pileus or paler, apically glabrous, densely covered with white fibrils especially near the base, dry, fistulose, brittle. Context brownish, watery. Odor aromatic, fruity becoming farinaceous. Taste farinaceous.
Spores 9-11 x 6-7.5 µm, 5-6-angled. Basidia 30-38 x 9-12 µm, 4-spored. Cystidia none. Cuticle a cutis of repent, cylindrical hyphae (5-15 µm), loosely interwoven, membrane thin-walled and not gelatinized, pigment brown, plasmatic or epimembranous. Clamp connections present or absent.

On soil in forests (of all kind of forests from the coast to 1200 m a.s.l.). New Zealand.

Horak sp. n.                                                          [3357]
Pileo 10-20 mm lato, primo conico dein convexo-umbonato vel papillato, umbo constanter praedito, griseobrunneo, desiccato pallidiori, glabro vel minute fibrilloso, striato, hygrophano, sicco. Lamellis ex libero adnatis, albidis dein roseis, acie integra instructis. Stipite 20-45 x 1-2 mm, cylindraceo, pileo concolori, fibrillis albis basim versus dense obtecto, sicco, fistuloso, fragili. Odore grato vel farinaceo. Sapore rancido. Sporis 9-11 x 6-7.5 µm, 5-6-angulatis. Basidiis 4-sporigeris. Cystidiis nullis. Epicute ex hyphis cylindraceis cutem formantibus, pigmento brunneo plasmatico vel incrustato instructis Septis fibulatis defibulatisve. Ad terram in silvis. Novazelandia.

E. aromaticum is the most variable of all Entoloma species studied in New Zealand. Though the size, shape and colour of the pileus is more or less constant the shape of the spores, the localization of the pigment in the hyphae of the cuticle and the presence or absence of the clamp connections can vary widely. The most striking character of this species is the strong fruity smell which may change to mealy in old carpophores.

Holotypus (PDD 27038): 'Ngahere, N.Z.; leg. Horak, 14.III.1968'.