@misc{indiciaee22946d50065, title = {George Engelmann : botanical notebook 45 : Polyanthus, Sagittaria, Echinodorus, Najadaceae, Najas, Potamogetonaceae, Cyperaceae, Gramineae — Illustration, [No.] 10252}, url = {https://www.biodiversitylibrary.org/page/55988277}, note = {Source identifier: page-55988277} }