Stagnicola Redhead & A.H. Sm., Canadian Journal of Botany 64(3): 645 (1986)
Development gymnocarpic. Habit mycenoid/collybioid to phaeocollybia-like. Pileus conical to convex, umbonate, hygrophanous, smooth, lubricous-viscid to greasy, striate, tawny, fulvous to sienna, orange yellowish at margin. Lamellae adnexed-ventricose, crowded with olivaceous tints and concolorous edge. Stipe central, smooth, bay or purplish reddish, dark brown to blackish towards the base, horny, cartilaginous, shiny, often deeply tapering towards base, marasmius cohaerens-like, xeromphalina-like (but without forming a true pseudorhiza), with a saffron to ochre basal mycelial tomentum. Smell and taste indistinct or astringent, bitterish. Spore print deep olive buff to pale hazel brown. Spores ellipsoid to amygdaliform-reniform, smooth, without a germ-pore, pale hazel, yellowish brown in water (practically hyaline) under the microscope, non-dextrinoid, inamyloid, cyanophilous, non-metachromatic, binucleate. Basidia usually 4-spored, rarely 1–2-spored. Cheilocystidia thin-walled, cylindrical to fusiform. Pleurocystidia absent. Hymenophoral trama regular, consisting of parallel hyphae. Pileipellis a thin ixocutis of encrusted hyphae with yellow brown parietal pigment. Caulocystidia present. Clamp-connections present. Tissues non-sarcodimitic.
Index Fungorum number: IF25777
Type species: Stagnicola perplexa (P.D. Orton) Redhead & A.H. Sm., Canadian Journal of Botany 64(3): 645 (1986)
Habit: Saprotrophic, usually on rotten plant debris (buried needles, leaves, twigs), in damp places, in moist to wet sites, coniferous forests, acid soils, often among Sphagnum, montane-boreal, Europe and North America.
Redhead, S.A.; Smith, A.H. 1986. Two new genera of agarics based on Psilocybe corneipes and Phaeocollybia perplexa. Canadian Journal of Botany. 64(3):643-647
Vizzini, A; Consiglio, G; Marchetti, M. 2019. Mythicomycetaceae fam. nov. (Agaricineae, Agaricales) for accommodating the genera Mythicomyces and Stagnicola, and Simocybe parvispora reconsidered. Fungal Systematics and Evolution. 3:41-56