[GS] Pileus 2.5-3.5 cm. diam., ochraceous buff overlain with sparse darker fibrils, moist at first drying subfibrillose, infundibuliform, opening at centre to stem cavity, margin down-turned, waved and becoming split; flesh thin, ochraceous. Gills decurrent, moderately distant, rather shallow, sometimes forking, ochraceous buff with a whitish bloom. Stipe 4-6.5 cm. x 2-3 mm., ochraceous, smooth, completely hollow, with a bulbous base. Spores 6 x 4um, amyloid, rather thin-walled, smooth (Fig. 1/37, p. 10); basidia 30 x 5um. Hymenophoral trama subregular with hyphae up to 5um diam. HABITAT: on fallen rotting wood, Korokoro, 1.5.1948 [EH] Spores oval, hyaline, amyloid, smooth, 5-6 X 3.5-4 um.; cheilocystidia club-shaped, thin-walled, 20-55 X 10—18 um, with clamp connection at the basal septum; cuticle of interwoven, cylindrical hyphae, forming a cutis, with scattered dermatocystidia-like cells. [JAC] cap tissue quite tough and elastic once revived (NH4OH). Stem base with a pad of radiating fibrils. Trama quite clearly sarcodimitic with long aseptate thick-wallled hyphae. Pileus a clamped cutis with brown and colourless vesicles (certainly Hydropoid). Vesicles usually broader than figured by Horak.The basidia are long. spores amyloid (neither strong nor weak). Cheilocystidia are present, collapsed, and generally cylindrical with occasional pleurocystidia-like - spherical/utriform. Occasional brown globose/utriform pleurocystidia present. Caulocystidia present on upper stem and like pleurocystidia and cap vesicles, some thick walled. Placement in Pseudoarmillariella (near Cantharellula in Lichenomphalia group) is understandable but more likely Clitocybula which is supported by sequence data from a morphologically similar collection. C. grisella is possibly just an immature version of this. Spores length=5.5–7.1µm (µ=6.4, σ=0.45), width=3.5–5.0µm (µ=4.1, σ=0.38), Q=1.3–2.0µm (µ=1.55, σ=0.14), n=30. Basidia 30 x 6 um.

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

Pileus 2.5-3.5 µm diam., ochraceous buff overlain with sparse darker fibrils, moist at first drying subfibrillose, infundibuliform, opening at centre to stem cavity, margin down-turned, waved and becoming split; flesh thin, ochraceous. Gills decurrent, moderately distant, rather shallow, sometimes forking, ochraceous buff with a whitish bloom. Stipe 4-6.5 cm x 2-3 mm, ochraceous, smooth, completely hollow, with a bulbous base. Spores 6 x 4µm amyloid, rather thin-walled, smooth (Fig. 1/37) P. 10); basidia 30 x 5µm. Hymenophoral trama subregular with hyphae up to 5 µm diam.

On fallen rotting wood, Korokoro, 1.5.1948, Stevenson (type).

Pileus 2.5-3.5 µm diam., ochraceo-bubalinus, fibrillis fuscioribus sparsis obductus, primum humidus, siccitate subfibrillosus, infundibuliformis, medio foramine in stipitis cavitatem pertusus, margine deflexo undulato tandem fisso; came tenui ochracea. Lamellae decurrentes) modice distantes, haud altae, interdum furcatae, ochraceo-bubalinae, albido-pruinosae. Stipes 4-6.5 cm x 2-3 mm, ochraceus, laevis, omnino cavus, basi bulbosa. Sporae 6 x 4 µm amyloideae, parietibus modice tenuibus, laevibus; basidia 30 x 5 µm Trama hymenophoralis subregularis, hyphis usque 5 µm diam.

Typus: Stevenson 232.