]> [collector note: Ukraine, Caucasus, Crimea, Ural & Altai) (col. 1919-56 mainly mosses): C (plants from Ukraine, col. 1921 with P. Oksijuk), E, KW, NMW (col. 1921-27).] Botany Zerov, Dmitrij Konstantinovic Zerov, Dmitrij Konstantinovic D. K. Zerov 1895 1971