426 



BOTANY 



PART II 



asexually. The two differ from one another in form, the gametophyte being an 



h 



A 



L) 



Fi(i. 368. Dudresnaya coccinea. A, Carpogouial branch ; c, carpogonium ; t, trichogyne. B, Carpo- 

 gonium after fertilisation, grownsout into the sporogenous filament (s/). C, Fusion of the 

 sporogenous filament with the first auxiliary cell (u^. D, Branching of the filament and fusion 

 with six auxiliary cslls (a r a 6 ) ; the cells a 3 -a 6 are borne on branches originating from the axis 

 ha (diagrammatic). E, Ripe cluster of carpospores originating from one branch. (A-D after 

 OLTMANNS ; E after BORNET. A-C x about 500 ; D x 250 ; E x 300.) 



independent plant, while the sporophyte is morphologically more primitive and is 

 dependent in its nutrition and development upon the sexual plant. 



