VI MOSSES {MUSCI): SPHAGNACEyE—ANDREMACE^ i6i 



base. From the lateral faces of the apical cell, as in the 

 acrogynous Liverworts, three sets of segments arc formed. The 

 whole vegetative cone is slender, especially in the smaller 

 branches. The first division in the young segment is j)arallel 

 to its outer face, and separates it into an inner cell, from which 



A. 



Fig. 77. — SphagmtJii cyinbifoliuin (Ehr?i.)- A, Median longitudinal section of a slender branch ; x, 

 the apical cell ; B, part of a section of the same farther down, showing the enlarged cells at the 

 bases of the leaves, and the double cortex {cor) ; C, cross-section near the apex of a slender 

 branch ; D, glandular hair at the base of a young leaf^all X 525. 



the central part of the axis is formed, and an outer cell which 

 produces the leaves and cortex. 



The second wall, which is nearly horizontal, divides the 

 outer cells of the segment into an upper and a lower cell, the 

 former being much broader than the latter, which is mainly 

 formed from the kathodic half of the segment, which is higher 

 than the anodic half.^ The next wall divides the upper cell 



^ Leitgeb (i). 

 M 



