@misc{indiciaec14707cb446e, title = {George Engelmann : botanical notebook 45 : Polyanthus, Sagittaria, Echinodorus, Najadaceae, Najas, Potamogetonaceae, Cyperaceae, Gramineae — Illustration, [No.] 10156 [1] verso}, url = {https://www.biodiversitylibrary.org/page/55968061}, note = {Source identifier: page-55968061} }