Leucostoma niveum
(Hoffm.) Höhn.
KW [Darwin] 7866. Place of collection: Ukraine; Zakarpatska Oblast; Rakhiv District; Kvasy village; Vaskul forest parcel (N48°10' E24°18'). Date of collection: 22 September 1953. Associated organism: Populus tremula (twig). Collector: Smits’ka, M.F.. Identifier: Hayova, V.P..