RED SEA-WEEDS. 



147 



provision. Indeed, there can be little doubt that 

 one of the " stock " kinds of food for many marine 

 creatures consists of the zoospores, &c., of sea-weeds. 



Fig. 107. 



Rhodymenia palmata. 



Nitophyllum is another genus of beautiful green sea- 

 weeds, readily obtained in true rock-pools. Autumn is 

 the best time for introducing sea-weeds, as the spores 



L 2 



