Joseph Sadler

* Bratislava, 6 May 1791 – † Pest, 12 March 1849 / botanist, physician, university ; teacher ; ; After his high school studies, he was first an assistant in the pharmacy of the Merciful in Bratislava, then he completed the pharmacy course in Pest in 1810. In 1812–1819 he continued his studies at the Faculty of Humanities and then at the Faculty of Medicine of the University of Pest, from 1815 he was an assistant professor at the Department of Chemistry and Botany under Pál Kitaibel, later János Schuster. In 1820 he became a doctor of medicine and assistant keeper in the natural history collection of the Hungarian National Museum, in 1821 he became the head of the collection and significantly expanded it. He collected plants, minerals and insects on his trips in Hungary and abroad. His herbarium contained more than 28,000 species in 1839, which became the basis of the plant collection of the Hungarian Museum of Natural History. He succeeded Károly Haberle (1764–1832) as a deputy in 1832, and as a full professor from 1834 until his death, at the university's botany department. As a deputy, he also taught chemistry from 1832 to 1842, but he also remained the museum's keeper. In 1848, after the revolution, he was among the first to undertake teaching in Hungarian and was the first to use microscopic sections for demonstrations. He was engaged in flora research, mosses and fungi. A summary of the flora of Hungary remained only a plan. He also began systematic monographs, when he wrote treatises on domestic mosses and grasses. The main significance of his work was his organizing, educational and popularizing activities, the creation of a large central herbarium, and the publication of exsiccatas (The dried collection of Hungarian plants). He introduced István Endlicher's progressive system into university education, which remained in use for a long time after his death. He was a member of several domestic and foreign scientific societies. Several plants were named after him (e.g. Buda rabbittail – Sesleria sadleriana, Hungarian knapweed – Ferula sadleriana, Buda imola – Centaurea sadleriana). His younger brother, Mihály Sadler (Bratislava, c. 1794 – Mogyorós, 1862) was also a physician. ; ; His main works: ; Verzeichniss, der um Pesth und Ofen wildwachsendenphanerogamischen Gewächse…, 1818, ; Hymn to the dried collection of Hungarian plants, 1824–1830, ; Flora Comitatus Pestiensis I-II., 1825–1826, ; De Filicibus veris Hungariae..., 1830, ; Die Gräser Ungarns, gesamlet und für Botaniker und Oekonomen herausgegeben (in 2 booklets) é. n