54 HOW TO KNOW THE MOSSES 



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). 



Leaves hair-like throughout .... 2, 3, 6, 8, ii, 15, 38. 



Leaves broader, sometimes ending in a hair-like tip 



8, 13, 39, 40, 41. 



Leaves short and broad (less than four times longer than 

 broadest part) .... 10, 18. 



b. Capsule angular (four- to six-sided) 



Leaves long and narrow (more than four times longer 

 than broadest part) .... 41. 



c. Capsule top-shaped or urn-shaped 



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) .... 16. 



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

 seen well enough to estimate their relative shape.) 

 Leaves short and broad (less than four times longer than 

 broadest part) .... 16, 24. 



d. Capsule egg-shaped, pointed 



Leaves long and narrow (more than four times longer 

 than broadest part) .... 36. 



II. CAPSULE NOT ERECT 

 a. Capsule cylindrical 



Leaves long and narrow (more than four times longer 

 than broadest part). 

 Leaves hair-like throughout .... i, 2, 4, 6, 7, 8. 



