Polysiphonia californica var. plumigera Harv.

Washington: Whatcom County: Point Roberts.
48.985560°, -123.076670°
Type. Type in herb. T.C.D. Three specimens from Point Roberts, the largest one inscribed in pencil "P. plumigera Harv.", the others without inscription of name. This type consists of a dried specimen mounted on a sheet. type.

D. Lyall s.n., Mar 1858
NY, Barcode: 00900670