68 HOW TO KNOW THE MOSSES 



see if the leaves are straight or curved, the entire 

 outHne need not show.) 

 Stems pinnately or irregularly branched. 



Leaves apparently on two opposite sides of stem. 

 Leaves straight .... 75, 80, 

 Leaves curved .... 71. 

 Leaves arranged equally around stem, straight 



.... 68, 69, 75, 78. 

 Stems bipinnately or tripinnately branched; leaves 

 straight .... 68. 



Plants growing on decaying wood, as old logs, 

 stumps, etc. 



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 or pinnately branched 



^ 50. 51, 52, 53, 56. 



Leaves when moist easily seen (it is necessary only to 

 see if the leaves are straight or curved, the entire 

 outhne need not show); stems irregularly or pin- 

 nately branched. 

 Leaves straight . . . . 50, 51, 52. 

 Leaves curved .... 52. 



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 pinnately branched .... 71. 

 Stems bipinnately or tripinnately branched .... 57. 

 Stems irregularly branched . . . . 59, 71, 75. 



