Tetraspora lubrica (Roth) C.Agardh ?
Annotated by Byron E. Lippert.

Washington: Benton County: Rattlesnake Springs, Arid Lands Ecology Reserve at Richland, about 500 yards upstream from lab
46.502588° N, 119.454063° W,
Datum: WGS 84. Uncertainty: 26117 meters. Coordinate Source: Digital Map.
Shallow, gently flowing water I've never seen pseudocilia in these collections - Lippert.

Byron E. Lippert 6.1, Apr 20, 1972
OSC, Barcode: OSC-A-015247

Tetraspora lubrica (Roth) C.Agardh
Annotated by Byron E. Lippert.

Washington: Benton County: Gamble Swamp, Richland
46.284326° N, 119.292297° W,
Datum: WGS 84. Uncertainty: 16817 meters. Coordinate Source: Digital Map.

Byron E. Lippert s.n., Jun 21, 1972
OSC, Barcode: OSC-A-015256