Species Heeria cinerea

For Oswald von Heer (1809–1883), Swiss paleobotanist, entomologist, phytogeographer, traveller, theologian, plant and insect collector, director of the botanical gardens in Zurich, and professor of botany and entomology at the University of Zurich (1852–1883) and the Swiss Federal institute of Technology. He published a prodigious number of books and papers on, inter alia, the primaeval world of Switzerland, the fossil flora of Alaska, Arctica, Croatia, the Netherlands and Portugal including Flora Tertiaria Helvetiae (three volumes, 1855–1859), Die Urwelt der Schweiz (1865), and Flora Fossilis Arctica (seven volumes, 1868–1883) with Eduard Heinrich Graeff. He described over 1 600 new species in his three major paleobotanical works alone.