378 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 3 



PLATE 40 



Variation in leaves, vesicles, and "inflorescences," x 2.12. 



Figs. 1-7. Sargassutn herporhizum, Johnston 72. 



Figs. 8-12. Sargassiim herporhizum, Johnston 55. 



Figs. 13-19. Sargassutn Brandegeei, Dawson 462. 



Figs. 20-21. Sargassutn Brandegeei, Dawson 141. 



Figs. 22a-22b. Sargassutn Brandegeei, Dawson 157. 



Figs. 23-25. Sargassutn Brandegeei, MacDougal, Dec. 1923. 



Fig. 26. Sargassutn Brandegeei, Dawson 383. 



