@misc{indiciae793dc7eeaec5,
  title = {George Engelmann : botanical notebook 45 : Polyanthus, Sagittaria, Echinodorus, Najadaceae, Najas, Potamogetonaceae, Cyperaceae, Gramineae — Illustration, [No.] 10137},
  url = {https://www.biodiversitylibrary.org/page/55964012},
  note = {Source identifier: page-55964012}
}