VII 



THE BR YINEJE 



185 



to multiply by division after the cells are fully grown. The 

 marginal cells in the leaf of Ftmaria are much narrower than 

 those between them and the midrib, and their forward ends 



Fig. ZZ.—Funaria hygroinetrica (Sibth.)- A, Transverse section of the apex of a young shoot, X 515 ; 

 B, C, cross-sections of young leaves, X515 ; D, cross-section of the stem, X257. 



often project somewhat, giving the margin of the leaf a serrate 

 outline, which is also common in many other Mosses. 



The BrancJies 



For the study of the branching of the stem, Amblystegium 

 again is much better than Funaria, whose short stem and 

 infrequent branching make it difficult to find the different 

 stages. In Ainblystegiuni, however, every median section will 

 show some of the stages, and it is easy to follow out all the 

 details, as has already been done in Fontinalis by Leitgeb.^ 

 The lateral shoots originate from a basal cell of the segment 

 below the middle of the leaf. It is very easily seen that it 



^ Leitgeb (i). 



