@misc{indiciae07f7d88de3d1,
  title = {George Engelmann : botanical notebook 7 : Echinocactus, Echinopsis, and Cereus — Illustration, [No.] 1574},
  url = {https://www.biodiversitylibrary.org/page/54383572},
  note = {Source identifier: page-54383572}
}