@misc{indiciae536bef3c202a,
  title = {George Engelmann : botanical notebook 39 : Yucca (Agavaceae) — Illustration, [No.] 8788},
  year = {1872},
  url = {https://www.biodiversitylibrary.org/page/56096481},
  note = {Source identifier: page-56096481}
}