@misc{indiciaef406eb767986, title = {George Engelmann : botanical notebook 45 : Polyanthus, Sagittaria, Echinodorus, Najadaceae, Najas, Potamogetonaceae, Cyperaceae, Gramineae — Illustration, [No.] 10008}, url = {https://www.biodiversitylibrary.org/page/55928493}, note = {Source identifier: page-55928493} }