NO. 1 



TAYLOR: PACIFIC MARINE ALGAE 



123 



acute, the margin very coarsely serrate with teeth 1-3 mm long at intervals 

 of 1-7 mm; the midrib evident nearly to the tip of the leaf; the cryptosto- 

 mata extremely small, scattered ; vesicles spherical, smooth, to about 7 mm 

 diam., on stalks about half as long; receptacles (perhaps incompletely 

 developed) small, axial, sparingly forked, the divisions stalked, each 

 tapering from the base, with acute tips. 



These plants come closest to S. sinicola Setchell & Gardner ( 1924, p. 

 736, pi. 20, fig. 73; Dawson 1944, p. 247) but apparently are larger and 

 coarser, with blunt to obtuse rather than tapering leaves. 



Ecuador: Guayas, dredged along the village beach. La Libertad, 

 Schmitt no. 12C-33, 19 Jan. 1933. Ibid., at Salinas, Schmitt no. 500B, 

 12 Sept. 1926. Ibid., from drif tweed and observed in dredged material, 

 Pta. Santa Elena, no. 34-473 (TYPE), 8 Feb. 1934. 



