— 376 - 



Fig. 18. Cladophora gracilis Kütz. 

 The uppermost part of the main branches showing the branching of the apex 

 (compare the text). (15:1.) 



their breadth. The rhizoids (fig. 19) resemble for the most part those 1 

 have described in C. sericea f. (p. 374). 



E. I c el. Djupivogivr. 

 NW. I cel. Kolbeinsâ. 

 SW. I c el. Brokey. 



Fig. 19. Cladophora gracilis Kütz. 

 a shows well developed and branched rhizoids (46 : 1) and b (35: 1) yet unbranched 

 rhizoids (compare the text and C. sericea f. p. 374). 



