Mycena morris-jonesii Stevenson (29 D) Figs 16, 17 = Galactopus morris-jonesii (Stevenson) comb. nov. (Basionym: M. morris-jonesii Stevenson, Kew Bull. 19: 52, 1964)

Spores oval, hyaline, amyloid, smooth, 7.5-9 X 4.5-6 µ. Cheilo- and pleurocystidia fusoid or awl-shaped, thin-walled, coloured with a reddish plasmatic pigment, 50-70 X 10-15 µ.

This is a very tough fungus and sections of the basidiome are very difficult to squash after KOH treatment. The basidiomes are light brown in colour when dried and have a very distinct, small umbo.

Description of basidiome based on information from a further collection

Pileus variable in size from 6-25 mm diam., convex conic with a distinctly pointed umbo, fawn to umber or bay brown at the centre, pellucid striate at the margin, smooth, drying yellow-brown. Lamellae creamy white, drying light yellow-brown, fairly broad, slightly decurrent, in 3 series, margin fimbriate under a lens, not differently coloured. Stipe 20-70 X 2-3 mm, smooth, pale yellow-brown at the top, darker below, even for most of length but slightly expanded at the base. Taste and smell unknown. Basidiome dries light brown with yellowish stipe.

Microscopically PDD 34878 varies little from the type. Spore range, 7-10 X 4.5-7(8.6 X 6.4) µm, Q=1.3, is similar. Some cheilocystidia and pleurocystidia are slightly larger, the pleurocystidia being the larger of the two; both are commonly geniculate at the base of the neck and some at the base of the cystidium. A few very small, slightly diverticulate elements were found on the stipe (Fig. 9,6b).