176 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 17 



PLATE 2 



Fig. 1. Acrochaflium piuictaUtrn Dawson. A plant of the type 



collection, D. 462b, from Bahia Bocochibampo, Sonora. 



Figs. 2-5. Kylinia seriaspora Dawson. Portions of several filaments 

 of the type collection, D. 736-40, from Isla Turner, 

 Sonora, showing the stellate chromatophore and the pro- 

 duction of solitary and seriate tetrasporangia. 



Figs. 6-8. Liagora ahhottac Dawson, from the t\ pe collection, D. 

 2875, Punta Santa Rosalia, Baja California. Fig. 6. A. 

 very young carpogonial branch. Fig. 7. An early post- 

 fertilization stage in the development of the gonimo- 

 hlast. Fig. 8. A later post-fertilization stage sho\ving 

 development of the gf)nimoblast and of the invoiucral 

 filaments. 



Figs. 9-12 Liagora far'tnosa Lam.x. Carpogonial branches of varied 

 form as observed in D. 8475, Isla (juadalupe, Baja 

 Calif. 



Figs. 13-15 Liagora ccranoidcs forma U-prosa (J. Ag.) ^'amada, 

 from D. 8478b, Isla Cniadalupe. Fig. 13. Part of an 

 assimilating filament bearing antheridia. Figs. 14-15. 

 Carpogonial branches. 



Figs. 16-17. Liagora californica Zeh, from D. 5483, a topotype col- 

 lection from Catalina Island, California. Fig. 16. An 

 assimilating filament bearing antheridia. Fig. 17. A 

 carpogonial branch. 



