@misc{indiciae6a30c80bdcf2, title = {George Engelmann : botanical notebook 45 : Polyanthus, Sagittaria, Echinodorus, Najadaceae, Najas, Potamogetonaceae, Cyperaceae, Gramineae — Illustration, [No.] 10334A}, url = {https://www.biodiversitylibrary.org/page/55983639}, note = {Source identifier: page-55983639} }