Pseudoclitocybaceae Vizzini, Consiglio, P.A. Moreau & P. Alvarado, in Alvarado et al., Fungal Diversity. 90:109-133 (2018)
Etymology: from the type genus Pseudoclitocybe
Diagnostic characters: Large- to medium-sized basidiomes (5–15 cm), tricholomatoid or clitocyboid, pileus umbilicate to convex-applanate, sometimes with persistent umbo, hygrophanous or not, lamellae decurrent, subdecurrent to uncinate; mycelium usually developed superficially on substrate as patches with or without rhizomorphs, rooting in tricholomatoid species; hymenophoral trama subregular to somewhat divergent; context homomorphous with cylindrical hyphae > 4 µm diam., usually with acyanophilic intracellular globules, mixed or not with thromboplerous hyphae, exclusively sarcodimitic in tricholomatoid species; subhymenium ramose, repent, easily dissociated; hymenium usually without cystidia; basidia narrowly clavate, small, mostly < 35 x 8 µm, without siderophilic granulations; loop-like (medallion) clamp connections usually present at least in mycelium; pileipellis a dry or weakly gelatinized cutis, frequently diverticulate, occasionally a trichocutis; spores usually smooth, amyloid or not, acyanophilous, with broad, truncate and prominent apicule; mating behaviour heterothallic bipolar (for documented species); nuclear behaviour holocoenocytic (fordocumented species, spores binucleate and terminal hyphae in the primary mycelium plurinucleate). Probably only saprobic (uncertain for Pogonoloma). Present worldwide, mostly temperate to boreal.
Index Fungorum number: IF823302
Type genus: Pseudoclitocybe (Singer) Singer, in Mycologia 48(5): 725 (1956)
Alvarado, P; Moreau, P-A; Dima, B; Vizzini, A; Consiglio, G; Moreno, G; Setti, L; Kekki, T; Huhtinen, S; Liimatainen, K; Niskanen, T. 2018. Pseudoclitocybaceae fam. nov. (Agaricales, Tricholomatineae), a new arrangement at family, genus and species level. Fungal Diversity. 90:109-133