40 



INTRODUCTION TO PLANT GEOGRAPHY [CIIAP. 



^ H-^J. 



h/± 







^ ' f 



■ v^^ 



^t\;s 



D E F 



Fig. 9. — Various forms of Red Algae (Rhodophyceae). A, P/iyllophora ( X about 



l);B, Batrachospennum {< 5); C, Grinnellia {:< about g); D, Chondrus { < about 



I); E, Cnrallnpsis (.; about i); F, Polysiphonia ( about A). 



