Julien Reverchon
After leaving botany for a few years, he started collecting plants in 1869, when he made an expedition to collect fossils with Jacob Boll (1828–1880) in West Texas. With later collections, he provided to the productions of noted studies of plants by Asa Gray and Charles Sprague Sargent and the improvement of many American collections. He thought botany at the end of his life in Dallas. At the time of his death in 1905, more than 2,600 species were cultured in his farm, and he possessed a rich herbarium of 20,000 specimens. Today, it is kept at the Missouri Botanical Garden in the city of St. Louis.