BOTANICAL SUBJECTS. 



133 



Fig. 20. Part of the margin of Fucus palmatus, marginifer (pi. 12, 

 Stackhouse, " Xereis Brit.")—" The margins are proliferous, Avith hairs 

 or rather stipitate plantlets, along the whole margin." 



If the carpel is a Ipaf, and the leaf a branch, and a branch the 

 same thing as the cladophyl of a seaweed, it is evident that the 

 margin of the carpel is homologous with the margin of Gigartina 

 lanceolata (Fig. 16) and others. The German and French botanists 

 who " denied that the carpel had the power of producing buds," 

 did not recognise that the carpel, the leaf, the branch, of 

 phoenagams, and the cladophyl of the seaweed were all, not only 



Fig. 21. Sargassum vulgare, Ag. (Harvey's Phyc. Brit., pi. 343). 



