@misc{indiciae056d2d4eec62, title = {George Engelmann : botanical notebook 45 : Polyanthus, Sagittaria, Echinodorus, Najadaceae, Najas, Potamogetonaceae, Cyperaceae, Gramineae — Illustration, [No.] 10007}, url = {https://www.biodiversitylibrary.org/page/55928491}, note = {Source identifier: page-55928491} }