MARINE ALGLE. 



63 



LIV. Stenogramme. 



Frond rose-red, nerveless, laciniate. Fructification 

 linear, convex, longitudinal (nerve-like) conceptacles, 

 containing a dense mass of minute spores. 



1. Stenogramme interrupta. 



LV. Ehodymenia. 



Frond flat, membranaceous, ribless, veinless, cellular. 

 Fructification : — 1. Convex tubercles, containing amass 

 of minute spores ; 2. Tetraspores imbedded among the 

 cells of the surface, scattered or forming cloudy patches. 



1. Ehodymenia bifida. 



2. 



" 



laciniata. 



3. 





Palmetta. 



4. 



>» 



cristata. 



5. 



J> 



ciliata. 



6. 



>> 



jubata. 



7. 



>5 



palmata. 



LVI. Sphjsrococcus. 



Frond cartilaginous, compressed, two-edged, disti- 

 chously branched. Fructification spherical tubercles, 

 containing a mass of minute spores. 



1. Sphserococcus coronopifolius. 



