@misc{indiciaeee2e9aba8591, title = {George Engelmann : botanical notebook 45 : Polyanthus, Sagittaria, Echinodorus, Najadaceae, Najas, Potamogetonaceae, Cyperaceae, Gramineae — Illustration, [No.] 10142}, url = {https://www.biodiversitylibrary.org/page/55964022}, note = {Source identifier: page-55964022} }