Holotype (PDD 27093); Isotype (Herb. HK. ZT 68/383): Track to St. Arnaud Range, Lake Rotoiti, Prov. Nelson, N.Z.; leg. Horak, 5.V.1968'.

Pileus 5-l5 mm diam., hemispherical or convex becoming plano-convex or subumbilicate, egg yellow to lemon yellow fading to yellowish-grey, darker at the centre, glutinous, translucidly striated, membranaceous. Lamellae arcuate, whitish-yellowish, gill edge concolorous and even, glutinous thread absent. Stipe 10-20 x 1-2 mm, cylindric, equal but often subbulbous at the base, apex whitish, yellow at the base, glutinous, single or in clusters, solid. Context yellow. Taste and odor not distinctive. Chemical reactions on pileus: KOH- negative. Spores 5.5-7.5 x 3-3.5 µm, ellipsoid, smooth, inamyloid. Basidia 28-32 x 4-5 µm, 4-spored. Cystidia absent. Cuticle a trichodermium of suberect, strongly gelatinized, hyaline, cylindric hyphae (2-5 µm diam.). Clamp connections numerous.

In soil under Nothofagus cliffortioides (montane forest). New Zealand.

Pileo 5-15 mm lato, e convexo plano, vitellino, glutinoso, striato. Lamellis arcuatis, albo-luteis, distantibus. Stipite 10-20 x 1-2 mm, albido cylindrico, basin versus luteo, glutinoso. Sporis 5.5-7.5 x 3-3.5 µm, ellipticis. Cystidiis nullis. Epicute ex hyphis glutinosis ixotrichodermium formantibus. Septis fibulatis. Ad terram in silvis nothofagineis. Novazelandia.

There is little possibility that G. bichromus could be confused with any of the other yellow coloured Gliophorus species in New Zealand if the microscopic characters are studied. Concerning G. nitidus Berk. & Curt. ss. Stev. no material was seen but it appears that this collection refers to G. bichromus Hk. Undoubtedly these two fungi are closely related but differ mainly in the different size of the spores and basidia (Hesler & Smith 1963: 232). From the point of view of size and colour of the carpophores Mycena primulina Stev. (1964) is very much similar to G. bichromus Hk. but differs in its conspicuous cheilocystidia and size of spores.

Holotypus (PDD 27093): "Lake Rotoiti, N.Z.; leg. Horak, 5.V.1968'.