HOW TO KNOW THE SEAWEEDS 



58a Thallus of varied form and branching, but without cellular sep- 



tation. Figs. 89, 90 59 



Fig. 89. Caulerpa 

 tastigiata Mon- 

 tagne 



Part of a plant 

 extracted from a 

 turf to show the 

 prostrate and 

 erect parts and 

 t h e descending 

 rhizoids, all with- 

 out cellular sep- 

 t a t i on , X 7. 

 Sandy places in 

 Florida. 



Figure 89 



Fig. 90. Caulerpa 

 species to show 

 varied form 

 and branching. 



A. Cau i e r p a 

 verticillata J. 

 Agardh. A small 

 part of a plant, 

 X 5. B. Caulerpa 

 racemosa (Forsk- 

 al) J. Agardh. A 

 small portion of 

 a plant. X 1.5. 

 Both of these spe- 

 cies and about 

 eleven others are 

 to be found in 

 the warm waters 

 of the Florida 

 coasts. Some of 

 them are flat- 

 tened and either 

 subsimple or pin- 



nately branched. These will be encountered farther on in the key at 



steps 148 and 160. 



Figure 90 



72 



