Phycotheca Boreali-Americana Collins, Holden & Setchell.

1744. Pterosiphonia Woodii forma pygmaea

Setchell n. f.

On Cystoseira osmundacea (Menz.) Ag., San Pedro, California, Oct., 1908.

N. L. GARDNER.

Growing at all seasons, in small tufts, one or two plants only in a tuft; much reduced in size from the typical form.

W. A. S.

cm

Macroalgal Herbarium Consortium Digitization Project