― 210 ― 



Carpogonial branch is simple, consisting* or about lo subspherical 

 or somewhat discoldal cells (of which lower 3-4 cells are sterile) in a 

 single series, its apex slip^htly deflexed and terminating in the much 

 eloivjated, curved or nearly straig-ht trichogyne. Some two cells 

 mostly standing- at the 4th to 5th from the carpos^oniuni are larger 

 than tlie remaininp- ones and are full of contents. Antheridia are 

 produced on the plant different from that having procarps ； that is 

 the plant is dioecious. They are linear or slender, elonpated fusiform 

 in outline, being developed from the cells of articulations of the 

 peripheral filaments. 



After fertilization a Ion ere r or shorter process (fig, 3, / ) is put 

 forth from the carpop^onium to fuse with some cells in the carpogonial 

 branch. This fusion of cells proceeds in greater or less extent, as it 

 is seen from fi(j. 3-5. The contents of cells thus fused become more 

 honiocrenous and translucent. From the fused cell or cells thus iorin- 

 ed very abundant, simple or branched and jointed ooblastenia fila- 

 ments'are emitted. 



Auxiliary cell-branches are very abundantly prepared, bein ゾ 

 composed of 5-9 cells slightly enlartjed toward the base, and terminat- 

 ing in a multiarticulate prolongation similar to that of the other 

 peripheral hlanients or often remain^ shorLer. Auxiliary cell occupies 

 the middle of the enlarip'ed portion of the branch and has little more 

 than half the diameter of the two immediately adjacent cells ； the 

 ]cii:i:er are very much inflated and rich in contents. 



The union of the coblastema filament set forth from the lused 

 cell always takes place with a single definite and hicrhly specialized 

 auxiliary cell which lies between the two larger ones, as stated above. 

 The contents of this cell appear at first very much like that of the 

 ■adjacent cells, but as it matures, it undergoes a change, becoming 

 more homogenous and translucent ； at the same time, the auxiliary 



