[GS] Pileus 1 -5-3 cm. diam., ochraceous fawn to greyish fawn, darker at centre, indistinctly striate, campanulate, smooth, dull; flesh thin, whitish, somewhat fragile. Gills adnate to sinuate, pale grey with white bloom, moderately distant, moderately thick. Stipe 2-4 cm. x 1-3 mm., ochraceous fawn darker at base, smooth, silky, hollow, brittle, often grooved. Spores 11 - 15 x 7-8um, non-amyloid or very weakly amyloid, strongly granular appearance, slightly thickened wall. Basidia with granulation. Cheilo- and pleurocystidia with or without granulation (Fig. 2/38, p. 37). Hymenophoral trama strongly pseudo-amyloid. Cuticle, pseudo-amyloid, cellular. Smell noticeable, unpleasant. HABITAT: in 'fairy-rings' in newly-made lawn, Karori, Wellington, 12.6.1949, Stevenson (type). [EH] After studying the type material we found no evidence why this fungus should be placed in Fayodia and suggest that this species should be transferred to Mycena. It is very likely that this agaric is an introduced species since it grew in "fairy-rings" in a newly made lawn near Wellington. [JAC] Collapsed spores on the gill do appear to be amyloid but I would agree that free spores don't look amyloid and have a granular appearance (in melzers), probably due to excess heating at some time. The collection appears to have been cooked or dried under really excessive heat, and that has massively disrupted/altered the micro features and the material has subsequently fragmented substantially. I could find just one random elements looking like Stevenson's 'cystidia'. It looks like the original micro-description was done after the excessive heating.In my opinion, based on limited available evidence, I'd say this was once Mycena olivaceomarginata. The stipe small hyphal pegs and cap surface structure at least have survived cooking.

Fig. 12 After studying the type material we found no evidence why this fungus should be placed in Fayodia and suggest that this species should be transferred to Mycena. It is very likely that this agaric is an introduced species since it grew in "fairy-rings" in a newly made lawn near Wellington.

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

Pileus 1.5-3 cm diam., ochraceous fawn to greyish fawn, darker at centre, indistinctly striate, campanulate, smooth, dull; flesh thin, whitish, somewhat fragile. Gills adnate to sinuate, pale grey with white bloom, moderately distant, moderately thick. Stipe 2-4 cm x 1-3 mm, ochraceous fawn darker at base smooth, silky, hollow, brittle, often grooved. Spores 11-15 x 7-8 µm, non-amyloid or very weakly amyloid, strongly granular appearance, slightly thickened wall. Basidia with granulation. Cheilo- and. pleurocystidia with or without granulation (Fig. 38). Hymenophoral trama strongly, to-pseudo-amyloid. Cuticle pseudo-amyloid, cellular. Smell noticeable, unpleasant.

In 'fairy-rings' in newly made lawn, Karori, Wellington, 12.6.1949, Stevenson (type).

Pileus 1.5-3 cm diam., ochraceo-hinnuleus usque griseo-hinnuleus, medio fusciore, indistincte striatus, campanulatus, laevis, obscurus; caro tenuis albida, subfragilis. Lamellae adnatae usque sinuatae, pallide griseae, albocereo-dbductae, modice distantes, modice crassae. Stipes 2-4 cm x 1-3 mm, ochraceo-hinnuleus, basi fusciore, laevis, sericeus, cavus, fragilis, saepe sulcatus. Sporae 11-15 x 7-8 µm, haud vel levissime amyloideae, adspectu valde granulares, pariete leviter incrassato. Basidia granulosa. Cheilo- et pleurocystidia interdum granulosa. Trama hymenophoralis valde pseudo-amyloidea. Cuticula pseudo-amyloidea, cellularis. Odor manifestus, ingratus.

Typus: Stevenson 638.