CHAPTER XMI. 



COLEOCHytTE. 



322. Among the green algs coleochfete is one of the most 

 interesting. Se\'eral species are known in this country. One 

 of these at least should be examined if it is possible to obtain it. 

 It occurs in the water of fresh lakes and ponds, attached to 

 •iquatic plants. 



323. The sMeld-shaped coleochaete. — This plant (C. scutata) 



Fig. 155- 

 •Stem o f 

 aquatic plant 

 showing co- 

 I eo c hse t e, 

 natural size. 



Fig. is6. 

 Thallus of Coleochate scutata. 



is in the form of a l^attened, circular, green plate, as shown in 

 fig. 156. It is attached near the center on one side to rushes 



