Leucostoma niveum
(Hoffm.) Höhn.
KW [Darwin] 7868. Place of collection: Russia; Leningrad Oblast; Luzhsky Raion; Krasnye Gory (N58°56' E29°38'). Date of collection: 5 July 1928. Associated organism: Populus tremula (twig). Collector: Naumov, N.A.. Identifier: Hayova, V.P..