Polish-russian biologist (1822-1887).
Lev Semyonovich Tsenkovsky, also Leon Cienkowski (Russian: Лев Семёнович Ценковский; 1 October [O.S. 13 October] 1822 – 25 September [O.S. 7 October] 1887) was a Russian botanist, protozoologist, and bacteriologist. He was a corresponding member of the Saint Petersburg Academy of Sciences (1881). Lev Tsenkovsky graduated from Saint Petersburg Imperial University in 1844. As a professor, he taught at the Demidov Lyceum in Yaroslavl (1850-1854), Saint Petersburg University, Imperial Novorossiya University in Odessa (1865-1871), and Imperial Kharkov University (1872-1887). Lev Tsenkovsky was one