Basionym Name:Stenocybe ahtii Titov & Baĭbul., in Titov, Acta bot. fenn. 150: 197 (1994)
Homotypic synonyms:Phaeocalicium ahtii (Titov & Baĭbul.) Titov, in Wei & Titov, Nov. sist. Niz. Rast. 34: 107 (2001)