RHODOPHYCE^, OR FLORIDA 



225 



the cover-glass the points of the branches may be 

 resolved into their component filaments, each with 

 its apical cell and each exhibiting its history of 

 division. All three genera (Champia, Chylocladia, 

 and Lomentaria) have hollow tubular fronds filled 

 with a gelatinous substance which also coats the 



FIG. ^l.a,Chylocladia kaliformis, carpogonial branch with trichogyne ; b, 

 fusion of cells of carpogonial branch to form one cell ; c, the fertilised auxiliary 

 cell with the two nuclei near each other ; d, optical section of young fruit 

 highly magnifled. (After Hauptfleisch.) 



outer wall. The first two have diaphragms inter- 

 rupting the continuity of this tube, the last has 

 none. With various minor modifications their repro- 

 ductive processes, which have been studied in great 

 detail by Hauptfleisch, arc essentially the same and 

 typical of the family. In Chylocladia kaliformis the 



Q 



