CRYPTOGAMS 



377 



involve nuclear fusions, but simply serve to nourish the sporogcnous filament. 

 A second and third sporogenous filament may arise from the carpogonial eell. 



B 



KKI. :;i4. Dttdretnaya <-<i<-i'inii<. .1 Cari>o;;oiiiai i>ranch; a, carpogoniom ; t. trichoxyne. 7.'. car|M>- 

 xonium after fi>i-tilis;itii)ii. ^rowu (int into tin- siwinixfiious liUiiiicnt (.-/). <'. fusion of tin- 

 .-IHiro^i'iioiis lilanirnt with the first :mxilinry cfll ('(). /), liranchinK of the lilainent and fusion 

 with six auxiliary ((Us ("i-",;); the cells ;-,; ai'e borne on bnnche* qrigllUttillg from tin- axis 

 ha (diagrammatic). /,'. Ki]M- cluster of cai-ix>s]Mires 01 ij;inatiu^ from one branch. (.!-/>. nlXei- 



Ol.TMANNs: A', alter HoKNKT. A-<', >' alHlllt.'iOO; />. Y. 250 : E, X 300.) 



Two outgrowths now arise from each of the swollen cells of the sporogeiious 

 filament which fused with auxiliary cells. By further division oT these outgrowth.-- 



