Lecanora populicola
(DC.) Duby
KW [Darwin] 30628. Place of collection: Ukraine; Zhytomyr oblast; Korostyshiv district; Osykovyi Kopets village, near (N50°16' E29°06'). Date of collection: 29 July 1950. Associated organism: Populus tremula (bark). Collector: Oksner, A.M..