[GS] Pileus 0.5-1 .75 cm. diam., white, floccose, plano-convex, thin. Gills adnate, white, moderately crowded, margins serrulate. Stipe 1-3 cm. x 1 mm., white, floccose. Spores 9-10 X 3-3.5um, non-amyloid, thin-walled (Fig. 2/11, p. 37). Hymenophoral trama of thin-walled hyphae with clamp connections, up to 10um diam.; very few thick-walled hyphae seen. Cuticle of loosely woven thin-walled hyphae about 10um diam., with clamp connections .HABITAT: in dense groups growing from a thick white mycelial mat on a fallen rotting log, Leith Saddle, Dunedin, 23.5.1953, Stevenson (type). [EH] = Marasmius delicatus (Stevenson) comb. nov. (Basionym: L. delicatus Stevenson, Kew Bull. 19: 32, 1964) Cuticle of hymeniform cells, walls smooth, not broom-like, clamp connections present. Spores 8-10 X 3-3.5 um, comma-like to fusoid, hyaline, smooth, neither amyloid nor dextrinoid. Cheilo- and caulocystidia present. [EH] An analysis of the holotype specimen revealed a suite of features that do not fitcomfortably in any described genus. The taxon is certainly not a Lentinus nor a Marasmius, but is more suggestive of a Resinomycena, albeit one with inamyloid basidiospores and non-dextrinoid tramal tissues. The following data are provided to supplement.those reported by Horak (1971a). Basidiospores 8-10 x 3.0-3.5 um, narrowly ellipsoid to fusoid, slightly curved, hyaline, inamyloid. Cheilocystidia abundant, lamellar edge sterile, 21-30 x 3-4 um, irregularly cylindrical, subclavate or subsinuous, thinwalled, hyaline. Pleurocystidi a absent. Pileipellis a trichodermium composed of erect, slightly interwoven hyphae with cylindrical to subclavate terminal cells; dendroid cells or diverticulate elements absent; hyphae cylindrical, non-gelatinous, non-incrusted, non-dextrinoid, clamped. Pi1eus tramal hyphae loosely interwoven, 4-10 um diam, cylindrical to irregular in outline but not inflated, otherwise similar to pileipellis hyphae. [JAC] Nothing to add to Egon's final description except that some spores, as expected, show a partial dextrinoid reaction, thus confirming that Rhodocollybia 'McCleans island' is the same species for which the correct combination will be Rhodocollybia delicata. These occasional spores are thick walled, often contracting at the apiculus, and in this case are more common on the gills than the cap. Normal spores length=7.2–8.9µm (µ=8.0, σ=0.46), width=2.8–4.0µm (µ=3.4, σ=0.27), Q=2.0–2.8µm (µ=2.40, σ=0.22), n=30

[Notes from Kew Type specimen, PRJ 2010] Kew images.

Pileus 0.5-1.75 cm diam., white, floccose, plano-convex, thin. Gills adnate, white moderately crowded, margins serrulate. Stipe 1-3 cm x 1 mm, white, floccose. Spores 9-10 x 3-3.5 µm, non-amyloid, thin-walled (Fig. 11). Hymenophoral trama of thin-walled hyphae with clamp connections, up to 10 µm diam., very few thick-walled hyphae seen. Cuticle of loosely woven thin-walled hyphae about 10 µm diam., with clamp connections.

In dense groups growing from a thick white mycelial mat on a fallen rotting log, Leith Saddle, Dunedin, 23.5.1953, Stevenson (type).

Pileus 0.5-1.75 µm diam., albus, floccosus, plano-convexus, tenuis. Lamellae adnatae, albae, modice confertae, marginibus serrulatis. Stipes 1-3 cm x 1 mm, albus, floccosus. Sporae 9-10 x 3-3.5 µm, haud amyloideae, parietibus tenuibus. Trama hymenophoralis hyphae cum parietibus tenuibus et fibulis, usque 10 µm diam., perpaucae cum parietibus crassis visae. Cuticula ex hyphis laxe intertextis circiter 10 µm diam., cum fibulis, parietibus tenuibus, sistens.

Further collections are needed to confirm the identification of other Lentinus spp. listed by Massee (1898).

Typus: Stevenson 876.