20, see text Infundibulicybe is a genus of fungi that is robustly placed incertae sedis as sister group to the Tricholomatoid clade.

[1][2] It has previously been part of the family of Tricholomataceae, but recent molecular phylogeny has shown it to take an isolated position within the Agaricales.

[3][4] Infundibulicybe shares some characteristics with Omphalina, like the cream-reddish brown tinges of pileus and stipe, the deeply decurrent lamellae and strongly encrusting pigment.

[4][5] Another member of the group, I. lateritia is a rare alpine-arctic species strictly associated with Dryas octopetala (Rosaceae).

[6] Infundibulicybe Lyophyllaceae Entolomataceae Tricholomataceae The group was formerly included in the genus Clitocybe, but in 2003 was erected to genus level to accommodate species for which mycelium cannot reduce nitrate and basidiospores do not adhere in tetrads, but exhibit a lacrymoid (tear-shaped) morphology, a confluent base and a cyanophobic basidiospore wall.