176 COLLINS AND HEEVET. 



PLATE III. 



Lophosiphonia Saccorhiza Collins & Hervey. 



FiGUKE 15. Tip of erect axis with antheridium and leaves. 330 X 1. 



FiGTJBE 16. Cystocarp. 330 X 1. 



FiGUKB 17. Prostrate filament with rhizoids. 120 X 1. 



Lophosiphonia bermudensis Collins & Hervey. 



FiGTntB 18. Prostrate filament with rhizoids and erect branches. 160 X 1. 



FiGTORE 19. Antheridia. 160 X 1. 



FiGUBE 20. Cystocarp. 160 X 1. 



FiGTiBB 21. Tetrasporangia. 160 X 1. 



Ceramothamnion Codii H. M. Richards. 

 FiGtiEE 22. Lateral union of two rhizoids from same node. 310 X 1. 



