Johann Joseph Peyritsch (20 October 1835 – 14 March 1889) was an Austrian physician and botanist born in Völkermarkt.
He later served as custos at the Naturhistorisches Museum in Vienna, and in 1878, succeeded Anton Kerner von Marilaun as professor of botany at the University of Innsbruck, a position he maintained until his death in 1889.
[1] He was editor of Heinrich Wilhelm Schott's celebrated monograph on aroids, Aroideae Maximilianae, and with Theodor Kotschy (1813–1866), was co-author of Plantae Tinneanae, a book describing flora collected on the Tinne expedition to Sudan.
The plant genus Peyritschia from the family Poaceae was named in his honor by Eugène Pierre Nicolas Fournier in 1881.
[1] Then in 1890, Roland Thaxter named a fungal genus Peyritschiella (in the family Laboulbeniaceae) after him.