@misc{indiciae415d1617bdbe,
  title = {George Engelmann : botanical notebook 45 : Polyanthus, Sagittaria, Echinodorus, Najadaceae, Najas, Potamogetonaceae, Cyperaceae, Gramineae — Illustration, [No.] 10240},
  url = {https://www.biodiversitylibrary.org/page/55988247},
  note = {Source identifier: page-55988247}
}