grout] 



SOME COMMON MOSSES 



337 



Hypnum Haldanianum X5, dry 



Many of our mosses, however, develop the sporo]jhyle from 

 lateral buds along a creeping or trailing stem. These ha\e l)een 

 called pleurocarpous. 



This division of the mosses is old fashioned and not technicalK' a 

 good one, for it does not divide the mosses according to \hv\v 

 natural relationships. It is, notwithstanding, a \'cr>' com-cnicMit 

 classification for a popular article, as the distinctions arc so ai)i)ar- 

 ent in nearly all cases. 



For the subject of this article I have taken ihvvv common moss(s 

 belonging to the old genus Hypnum. 



