Plate IX. 



Figs. 1-4. SargasHimt tosaense. 



1. Basal portion dl' a rroiid. 



2. Lower portion ol' a lateral branch. Tlir iulcrant leaf as well as 

 the three leaves on the lateral branch sliow well the peculiarity 



of the species. 



3. A fertile lateral branch in the upper portion of a frond. 



4. A simple fulcrant leaf often niet with in the lower part of a 

 well develo[)e(l frond. 



