58 HOW TO KNOW THE MOSSES 



Leaves long and narrow (more than four times longer 

 than broadest part). 

 Leaves hair-like throughout .... 26. 

 Leaves broader, sometimes ending in a hair-like tip 



.... 27, 28. 

 Leaves short and broad (less than four times longer than 

 broadest part) .... 25, 28. 



d. Capsule globular 



Shape of leaves when moist not easily seen. (Leaves too 

 small or too closely folded to show if they are rela- 

 tively long and narrow or short and broad) .... 34. 

 Shape of leaves when moist easily seen. (Leaves must be 

 seen well enough to estimate their relative shape.) 

 Leaves long and narrow (more than four times longer 



than broadest part) .... 32, 33. 

 Leaves short and broad (less than four times longer than 

 broadest part) .... 34. 



Plants growing on roots or trunks of trees 



I. CAPSULE ERECT 



a. Capsule cylindrical 



Leaves long and narrow (more than four times longer 

 than broadest part) .... 8, 13, 22, 23. 



Leaves short and broad (less than four times longer than 

 broadest part) .... 10, 17. 



b. Capsule elliptical, oval, or pear-shaped 



Shape of leaves when moist not easily seen. (Leaves too small 

 or too closely folded to show if they are relatively 

 long and narrow or short and broad) .... 21, 22. 



