TY - ART TI - George Engelmann : botanical notebook 45 : Polyanthus, Sagittaria, Echinodorus, Najadaceae, Najas, Potamogetonaceae, Cyperaceae, Gramineae — Illustration, [No.] 10038 UR - https://www.biodiversitylibrary.org/page/55935309 ID - page-55935309 ER -