@misc{indiciae3a5cfb9b6435,
  title = {George Engelmann : botanical notebook 9 : Echinocereus, Cereus, Eulychnia, Pilocereus — Illustration, [No.] 2012},
  url = {https://www.biodiversitylibrary.org/page/56134359},
  note = {Source identifier: page-56134359}
}