CAPSULE KEY 6l 



Fruit on the side of the stem or on a very short lateral 

 branch. Stems prostrate or ascending, rarely erect, usually 

 much branched (with more than two or three branches).^ 

 Pleurocarpous Mosses, p. 172. 



Note. When in doubt where to place a moss that is somewhat branched, 

 try it under both Division A and Division B. 



Plants growing on the ground 



I. CAPSULE ERECT 



Leaves when moist not easily seen (too small or too 

 closely folded to show^ if they are straight or 

 curved); stems irregularly branched .... 50, 53, 75. 

 Leaves when moist easily seen. (It is necessary only to 

 see if the leaves are straight or curved, the entire 

 outline need not show.) 

 Leaves more or less curved; stems irregularly 



branched .... 44. 

 Leaves straight. 



Stems irregularly branched .... 44, 50, 75. 

 Stems tree-like in branching .... 45. 



II. CAPSULE NOT ERECT 



a. Capsule long-cylindrical (at least four times longer 

 than broad) 



Leaves when moist not easily seen (too small or too 

 closely folded to show if they are straight or 

 curved). 

 Stems pinnatcly branched .... 57, 5S, 71. 



> For arrangement of branches sec "lUustrations of Terms," Plate II. 



