HOW TO KNOW THE SEAWEEDS 



60b Branched or unbranched; if branches present, these not whorled.62 



61a Gametangia between (enclosed by) cells of secondary whorls. 

 Fig. 93 Dasycladus vermicularis 



Fig. 93. Dasycladus vermicularis (Scopoli) Krasser 



A single lateral branchlet showing the game- 

 tangium enclosed by cells of a secondary whorl, 

 X 17. Growing on shells, coral, etc., in Florida. 



Figure 93 



61b Gametangia outside of cells of secondary whorls. Fig. 94 



Batophoia oerstedi 



m 



Fig. 94. Batophora oerstedi J. 

 Agardh 



A. An entire plant of a dense- 

 ly branched form closely resem- 

 bling Dasycladus but showing 

 near the tip an indication of the 

 whorled arrangement of the later- 

 al branchlets, X 1.1. B. A single 

 lateral branch bearing three game- 

 tangia, X 17. Common in south- 

 ern Florida and west to Texas. 



Figure 94 



74 



