@misc{indiciaea4fd3675f8c4,
  title = {George Engelmann : botanical notebook 7 : Echinocactus, Echinopsis, and Cereus — Illustration, [No.] 1592},
  url = {https://www.biodiversitylibrary.org/page/54369639},
  note = {Source identifier: page-54369639}
}