Leucostoma niveum
(Hoffm.) Höhn.
KW [Darwin] 7792. Place of collection: Ukraine; Zhytomyr Oblast; Ovruch District; Hladkovychi village (N51°20' E28°51'). Date of collection: 29 May 1941. Associated organism: Populus tremula (twig). Collector: Zerova, M.Ya.. Identifier: Hayova, V.P..