Ulmus laevis
Pall.
KW [Mycology] 4997. Place of collection: Ukraine; Mykolaiv oblast; Voznesensk district; Ratsins’ka Dacha village (N47°37' E31°34'). Date of collection: 20 June 1970. Associated organism: Flammulina velutipes. Collector: Wasser, S.P..