362 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 3 



PLATE 32 



Sargassum Johnstoniij variation in leaves, vesicles, and inflorescences, x 3.75. 



Figs. 1-4. Dawson 555, oogonial tips. 



Figs. 5-7. Drouet & Richards 2914. 



Figs. 8-9. Dawson 476. 



Fig. 10-12. Drouet & Richards 2914. 



Fig. 13. Dawson 357a. 



Figs. 14-15. Antheridial and oogonial "inflorescences" from a single 

 plant, but sexes not mixed in receptacles. 



