Ladislav Josef Čelakovský

Ladislav Josef Čelakovský (29 November 1834 – 24 November 1902) was a Czech botanist. He was the son of writer František Ladislav Čelakovský, and father to mycologist Ladislav František Čelakovský (1864–1916). He took an evolutionary approach to the study of plants, alternation of generation, flower structure and other aspects. Provided by Wikipedia