@misc{indiciaec1302f0e6c12,
  title = {Progressus rei botanicae = Fortschritte der Botanik = Progrès de la botanique = Progress of botany — Illustration, BHL page 12981908},
  year = {1914},
  url = {https://www.biodiversitylibrary.org/page/12981908},
  note = {Source identifier: page-12981908}
}