Zannichellia palustris Linnaeus, Species Plantarum 2: 969. 1753.

"Habitat in Europae, Virginiae fossis, fluviis." RCN: 7027.

Lectotype (Obermeyer in Codd & al., Fl. Southern Africa 1: 77. 1966): Herb. Linn. No. 1085.1 (LINN).

Generitype of Zannichellia Linnaeus.

Current name: Zannichellia palustris L. (Zannichelliaceae).

Note: Most authors since Obermeyer have treated 1085.1 (LINN) as the type, although van Vierssen (in Aquatic Bot. 12: 125-126. 1982) indicated Herb. Burser X: 126 (UPS) as type (illustrating the fruits as f. 10) and has been followed by several later authors. However, Obermeyer’s choice of type has priority.