@misc{indiciae586dd55be027,
  title = {Progressus rei botanicae = Fortschritte der Botanik = Progrès de la botanique = Progress of botany — Illustration, Page 253},
  year = {1911},
  url = {https://www.biodiversitylibrary.org/page/12969206},
  note = {Source identifier: page-12969206}
}