[GS] Pileus 5-14 mm. diam., pale yellow darker at centre, broadly campanulate with indistinct umbo, dull, smooth; flesh thin, concolorous. Gills sinuately decurrent, pale yellow, moderately crowded, long and short intercalated. Stipe 2-5-5 cm - x l mm. Pale yellow darker at base, smooth, fragile, with scattered white fibrils towards base. Spores 6-7 x 4um, slightly amyloid, thin-walled. Hymenophoral trama and tissue of pileus pseudo-amyloid, with many large cells, 60-90 x 20-30um. Cheilo- and pleurocystidia abundant, ornamented (Fig. 2/44, p. 37). HABITAT : amongst moss, Wai-iti, Nelson, 19.5.1956, M. Stewart in Stevenson. [EH] spores oval, hyaline, inamyloid, smooth, 4-5 x 3 um. Cystidia fusoid to awl-shaped, hyaline, 20-32 x 4-7um. [JAC] Wai-iti 'recreational park' is dominated by exotics. I assumed this would turn out to be Rickenella fibula but it does not have the cystidia of that species. There are no signs in any of the material of the cheilos mentioned by Stevenson, and very unlikley there would be. Those must have been observations from a different collection. I cannot find Egon's fusoid to awl-shaped cystidia. No tissue amyloid or dextrinoid. Spores glued together. Cap a partially gelatinsed cutis, without ornamentation or cystidia, and not pseudoamyloid. lamellae exuding oild drops into melzers. This does not have the elongate spores of Hemimycena jac11428 and is not H. olida. Frosting that looks like caulocystidia are just glued spores. This is not the same as any other material I have seen labelled M. primulina. This appears to represent a subsequently uncollected, and probably exotic, Hemimycena/Atheniella.

Mycena primulina Stevenson (29 D) Fig. 21 Spores oval, hyaline, inamyloid, smooth, 4-5 X 3 µ. Cystidia fusoid to awl-shaped, hyaline, 20-32 X 4-7 µ.

255 Mycena primulina: a. spores.

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

Pileus 5-14 mm diam., pale yellow darker at centre, broadly campanulate with indistinct umbo, dull, smooth; flesh thin, concolorous. Gills sinuately decurrent, pale yellow, moderately crowded, long and short intercalated. Stipe 2.5-5 cm x 1 mm, pale yellow darker at base, smooth, fragile, with scattered white fibrils towards base. Spores 6-7 X 4 µm, slightly amyloid,. thin-walled. Hymenophoral trama and tissue of pileus pseudo-amyloid, with many large cells, 60-90 x 20-30 µm. Cheilo- and pleurocystidia abundant, ornamented (Fig. 44).

Amongst moss, Wai-iti, Nelson, 19.5.1956, M. Stewart in Stevenson (type).

Pileus 5-14 mm diam., pallide flavus (medio intensius), late campanulatus, umbone indistincto, obscurus, laevus; caro tenuis, concolor. Lamellae sinuato-decurrentes, pallide flavae, modice confertae, longiores cum brevioribus intercalatae. Stipes 2.5-5 cm x 1 mm, pallide flavus, basi fusciore, laevis, fragilis, basin versus fibrillis albis sparsis praeditus. Sporae 6-7 x 4 µm leviter amyloideae, parietibus tenuibus. Trama hymenophoralis et pilei textura pseudo-amyloidea, cellulis magnis numerosis, 60-90 x 20-30 µm. Cheilo- et pleurocystidia copiosa, ornata.

Typus: M. Stewart in Stevenson 1096.