@misc{indiciaeec0278e6e5c6,
  title = {George Engelmann : botanical notebook 7 : Echinocactus, Echinopsis, and Cereus — Illustration, [No.] 1758 2 / [No.] 1758 [1] verso},
  url = {https://www.biodiversitylibrary.org/page/56147449},
  note = {Source identifier: page-56147449}
}