MAEINE ALG-yE. 



51 



1. Elachistea fucicola. 



2< 



, flaccida. 



3. 



, curta. 



4. 



, pulvinata (attenuate). 



5. 



, stellulata. 



6. 



, scutulata. 



7. 



, velutina. 



XXXI. Myrionema. 



Minute parasites, consisting of a mass of short, erect, 

 simple jointed filaments, spreading, in patches, on the 

 surface of other Algae. 



1. Myrionema strangulans. 



%. ,, Leclancherii. 



3. „ punctiforme. 



4. „ clavatum. 



Order VI. ECTOCAKPACEiE. 



Olive-coloured, articulated sea-weeds, filiform. Spores 

 (generally) external, attached to the jointed ramuli. 



e 2 



