HOW TO KNOW THE SEAWEEDS 



1 48a Plants with sand-penetrating rhizoids and erect blades from creep- 

 ing, stoloniierous parts. Fig. 188 Caulerpa proUfera 



imr0^*^ 



Fig. 188. Caulerpa pTolifera (For- 

 skal) Lamouroux 



Part of a plant to show the creep- 

 ing, stolon part with sand-penetrat- 

 ing rhizoids, and the flat, erect 

 blades with proliferous branches, X 

 0.6. Grows in quiet waters of south 

 and west Florida. Other species of 

 this genus of varied morphology are 

 treated elsewhere in this key. 



Figure 188 



148b Holdfasts simple and discoid, or of coarse hapteres, without pene- 

 trating rhizoids 149 



149a Blades from a prominent stipe several centimeters long 150 



149b Blades estipitate, or from a very short stipe 151 



145 



