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PACIFIC SCIENCE, Vol. XXII, January 1968 
Figs. 22-36. (Scale rr lOOjx, except as indicated.) 22, Polysiphonia poko var. longii, tip of tetrasporangial 
branch of the type specimen. 23, Polysiphonia sparsa, vegetative branch tip. 24, Polysiphonia sphaerocarpa 
var. filifera, with spermatangial stichidia. 25, Polysiphonia quadrata, vegetative branch tip from the type 
