@misc{indiciae1a69df922732,
  title = {George Engelmann : botanical notebook 45 : Polyanthus, Sagittaria, Echinodorus, Najadaceae, Najas, Potamogetonaceae, Cyperaceae, Gramineae — Illustration, [No.] 10219},
  url = {https://www.biodiversitylibrary.org/page/55961913},
  note = {Source identifier: page-55961913}
}