HOW TO KNOW THE SEAWEEDS 



30b Main axes corticated just back of apices, not by filaments from 

 the nodes; uniseriate branchlets arising from all parts of the cor- 

 tical surface. Fig. 50 Dasya 





Fig. 50. Dasya pedicellata (C. 

 Agardh) C. Agardh 



A mid-portion of a plant 

 about 15 cm. high showing the 

 slender lateral branchlets aris- 

 ing from all parts of the surface 

 of the corticated axis. X 1.2. 

 The dark bodies represent cysto- 

 carps. Although a single Pa- 

 cific Coast species, Dasya paci- 

 hca Gardner, occurs abundant- 

 ly at La Jolla, Cahfornia dur- 

 ing the summer, this genus is 

 otherwise restricted in the Unit- 

 ed States to the Atlantic Coast. 

 D. pedicellata is the common 

 species there, occurring all the 

 way from Texas through Flori- 

 da to Massachusetts. It is usu- 

 ally found in protected waters 

 at depths of 3 to 12 feet below 

 low water level. There are sev- 

 eral other species known from 

 Florida, but they are of infre- 

 quent or rare occurrence. 



Figure 50 



50 



