@misc{indiciae94dfe296cdd6, title = {George Engelmann : botanical notebook 45 : Polyanthus, Sagittaria, Echinodorus, Najadaceae, Najas, Potamogetonaceae, Cyperaceae, Gramineae — Illustration, [No.] 10313}, url = {https://www.biodiversitylibrary.org/page/55988929}, note = {Source identifier: page-55988929} }