180 



COLLINS AND HERVET. 



PLATE V. 



Ceramium transversale Collins & Hervey. 



FIGURE 29. Prostrate filament with erect filament and rhizoids. 120 X 1. 

 FIGURE 30. Erect filament with branch. 255X1. 

 FIGURE 31. Branch with tetraspores. 160 X 1. 



Nitophyllum Wilkinsoniae Collins & Hervey. 



FIGURE 32. Section of frond through a sorus. 160 X 1. 

 FIGURE 33. Superficial view of a sorus. 160 X 1. 



Halymenia bermudensis Collins & Howe. 

 FIGURE 34. Cross section. 255X1. 



Halymenia pseudofloresia Collins & Howe. 

 FIGURE 35. Cross section. 130X1. 



