174 COLLINS AND HEEVEY. 



PLATE II. 



Nitophyllum Wilkinsoniae Collins & Hervey. 

 FiGTTEB 9. Margin of frond. 120 X 1. 



Chondria curvilineata Collins & Hervey. 



Figure 10. Portion of branch with ramulus and terminal leaves. 255 X 1. 

 Figure 11. Optical section of branch. 255 X 1. 



Chondria polyrhiza Collins & Hervey. 

 Figure 12. Branch with rhizoids and tetraspores. 240 X 1. 



Lophosiphonia Saccorhiza Collins & Hervey. 



Figure 13. Tip of erect axis. 600 X 1. 



Figure 14. Ramulus with tetraspores. 600 X 1. 



