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PACIFIC SCIENCE, Vol. XXII, January 1968 
Fig. 1 . A, Polysiphonia anomola, apex of a prostrate branch. B, Polysiphonia anomola cystocarp. C, Poly- j 
siphonia anomola, young cystocarp on a very short erect branch, bearing a huge trichoblast. D, Polysiphonia 
apiculata, apex of a branch. E, Polysiphonia heaudettii, with tetrasporangial branches narrowly attached to a 
main axis. F, Polysiphonia delicatula, apex of erect branch. G, Polysiphonia flaccidissima var. iki, apex of a i 
branch bearing a spermatangial stichidium. H, Polysiphonia flaccidissima var. lopi, branch apex. I, Polysi- 
phonia herpa, apex of prostrate branch showing originof erect branches from dorsal primordia. 
