FUCUS VESICULOSUS. 



shaped, mostly in twos, as seen at /;, fig. i. It has a peculiar odor 

 and a nauseous, saline taste. The reproductive organs are devel- 

 oped on different fronds. The fronds bearing the male organs are 

 an olive brown, while those of the female are a reddish brown. 



Fig. i shows a frond of Fucus Vesiculosus, natural size. The 

 pair of air-bladders, which gives the name to the sea-weed, is 



o/- 



Fig. j. Conceptacle, 

 Epidermal Cells. 



F. Vesiculosus. a. Interlacing Filaments. b. 

 c. Oogonia. d. Hairs. (x?5 Diameters^] 



seen at a. Generally all of the tips of the branches are enlarged 

 and bearing, thickly crowded on the surface, the small conceptacles 

 which contain the reproductive organs. 



A cross section of the enlarged tip, seen at b. fig. i, was 



