[PL] cap convex, white and primrose yellow. Spores narrower and cheilo different to Stev. but macrodescription fits. [JAC] Stevenson's shows type of M. primulina with typical mycena-like broom cell club-shaped cheilo. Horak says "Spores oval, hyaline, inamyloid, smooth, 4-5 x 3 um. Cystidia fusoid to awl-shaped, hyaline, 20-32 X 4-7 um." which he also says are conspicuous (which would make it like Mycena/Hemimycena/Atheniella flavoalba). In fact the type shows no conspicuous cheilocystidia at all. This material has inamyloid spores and no cystidia.. With hyaline resinous material and spores glued together. Cap and caulo gymnopoid. 4-spored. Cap an intermixed cutis of unclamped hyphae to 7um diam. Dried orange - like campanella spp. Sequence says this is basal to Lichenomphalia. Is M. primulina a Lichenomphalia?
J.A. Cooper, 2014