@misc{indiciae017bf17fc40e,
  title = {George Engelmann : botanical notebook 27 : Nyctagineae, Chenopodiaceae, Polygonaceae, Aristolochiaceae, Loranthaceae, Urticaceae, Platanaceae, Juglandaceae, Fagaceae, Betulaceae, Salicaceae — Illustration, [No.] 5604},
  year = {1872},
  url = {https://www.biodiversitylibrary.org/page/53033162},
  note = {Source identifier: page-53033162}
}