78 
PACIFIC SCIENCE, Vol. XXII, January 1968 
A number of additional collections have been 
identified with this species with considerable 
misgivings. They are perhaps closer to P. sphae- 
rocarpa as at present interpreted. A portion of 
the type collection of P. savatieri collected at 
Yokosuka, Japan by M. Savatier was examined 
through the kindness of the Natural History 
Museum, Paris. The plants of this collection 
Fig. 5. A, Polysiphonia setacea, tip of erect branch. B, Polysiphonia setacea, portion of an erect branch, 
showing oblique orientation of pericentral cells. C, Polysiphonia setacea, prostrate branch and rhizoid with 
enlarged apex and multicellular branches. D, Polysiphonia sparsa, portion of prostrate branch. E, Polysi- 
phonia sphaerocarpa var. distans, tip of branch. F, Polysiphonia suhtilissima var. abhottae, apex of branch 
with abundant trichoblasts (from type material). 
