@misc{indiciae8d97a5a864e4,
  title = {George Engelmann : botanical notebook 7 : Echinocactus, Echinopsis, and Cereus — Illustration, [No.] 1577},
  url = {https://www.biodiversitylibrary.org/page/54383580},
  note = {Source identifier: page-54383580}
}