Navicula cascadensis Sovereign ex Sovereign
Navicula cascadensis in Trans. Amer. Microscop. Soc. 79: 345. 1960
is basionym for Geissleria cascadensis in Notul. Algarum 103: 1. 29 May 2019
is validating Navicula cascadensis in Trans. Amer. Microscop. Soc. 77: 118, t. III, fig. 32, 33. 1958, nom. inval.1
Holotype: United States of America, Oregon, Diamond Lake, boat-landing on south shore, 18 Aug 1950, H.E. Sovereign T28S, R6E (CAS: 205077)