Gymnopus foliiphilus var. costaricensis. Pileipellis elements. A, B Firm-walled hyphae with slime sheath and crust material on exterior of the sheath C–J Diverticulate hyphae with individual lobate outgrowths K, L Extended lobes into ribbon-like proliferations. Standard bars = 10 µm. TFB 9750.

  Part of: Petersen RH, Hughes KW (2016) Micromphale sect. Perforantia (Agaricales, Basidiomycetes); Expansion and phylogenetic placement. MycoKeys 18: 1-122.