48 HOW TO KNOW THE MOSSES 



Plants growing on rocks, sticks, etc. in or at the edge of 

 streams, ponds, or water-holes 



I. LEAVES WHEN MOIST NOT EASILY SEEN 

 (Leaves too small or too closely folded to show if they are straight or curved) 



Stems less than three inches long; irregularly branched; 

 capsule not erect .... 79. 



II. LEAVES WHEN MOIST EASILY SEEN 



(It is necessary only to see if the leaves are straight or curved, the entire 

 outline need not show) 



Stems less than three inches long. 

 Stems tree-like in branching; leaves straight; capsule 



erect .... 45. 

 Stems irregularly branched. 



Leaves straight, erect or spreading.'- 

 Capsule erect .... 44. 



Capsule not erect .... 44, 59, 61, 65, 75, 77, 79. 

 Leaves more or less curved and turned to one side. 

 Capsule erect .... 44. 

 Capsule not erect .... 44, 65. 

 Stems more than three inches long, irregularly branched. 

 Leaves straight, erect or spreading.^ 

 Capsule erect .... 43, 44. 

 Capsule not erect .... 44, 59, 65. 

 Leaves more or less curved, sometimes turned to one 

 side. 

 Capsule erect .... 44. 

 Capsule not erect .... 44, 62, 65. 



1 If No. 19 has been mistaken for a pleurocarpous moss, it will apparently 

 belong here. 



