@misc{indiciaeeb74867c0ef5,
  title = {George Engelmann : botanical notebook 27 : Nyctagineae, Chenopodiaceae, Polygonaceae, Aristolochiaceae, Loranthaceae, Urticaceae, Platanaceae, Juglandaceae, Fagaceae, Betulaceae, Salicaceae — Illustration, [No.] 5631},
  year = {1872},
  url = {https://www.biodiversitylibrary.org/page/53044117},
  note = {Source identifier: page-53044117}
}