Navicula lanceolata (C.Agardh) Kützing
Annotated by R. Patrick.

Montana: Ravalli County: 2 miles east of Stephensville
46.508642° N, 114.051347° W,
Datum: WGS 84. Uncertainty: 500 meters. Coordinate Source: Digital Map.
Moist bank. Substrate: sediment.

Fred A. Barkley 5017, Oct 26, 1940
OSC, Barcode: OSC-A-014434