Commonly known as stalked puffballs, the cosmopolitan genus consists of species which produce small fruit bodies, characterized by stalks inserted in a socket at the base of the spherical spore-sac opened by a small and apical mouth.
Tulostoma species prefer xeric microhabitats, savannahs and deserts, and are saprobic—obtaining nutrients by decomposing roots, buried wood and other organic material of plant origin.
[1] The following list of 102 species is compiled from Jorge Eduardo Wright's 1987 world monograph on the Tulostomatales, as well as reports of new taxa described in the literature published since then.
New species have since been reported from Spain (1992),[2] Mexico (1995),[3] Venezuela (2000),[4] Tunisia (2002),[4] China (2005),[5] and Argentina.
[6] Czech mycologist Zdeněk Pouzar elaborated an infrageneric (below the level of genus) system of classification for Tulostoma species in his 1958 monograph of European taxa.