266 APPENDIX 



Stems and branches showing red through the leaves when 

 moist plants are held to the light .... 45, 68, 69, 



Position and shape of leaves 



The leaves of most of the pleurocarpous mosses are more 

 or less ovate at the base and end in a straight or curved 

 tip, but they are often too small or too closely folded 

 to show the entire outline. They are erect or spreading 

 and usually arranged equally around the stem and 

 branches, sometimes flattened and apparently in two 

 rows. 



Leaves straight and flattened on two opposite sides of the 

 stem, apparently in only two rows, giving the plants a 

 pressed appearance .... 47, 48, 72, 73, 75, 80. 



Leaves curved and turned in two opposite directions, appar- 

 ently in only two rows, giving a braided appearance 

 along the stems and branches .... 71. 



Leaves strongly curved and more or less turned in one 

 direction .... 62, 66, 70, 71. 



Color of leaves 



The color of the leaves of most mosses varies from light 



or yellowish-green to dark green. 

 Leaves usually light, yellowish-, or golden-green. 



Capsule erect .... 44, 47, 50, 52. 



Capsule not erect .... 58, 63, 67, 69, 70, 76. 

 Leaves usually very dark or olive-green. 



Capsule almost concealed by the surrounding leaves 



42. 



Capsule erect 43, 55, 56. 



Capsule not erect .... 77. 



Color of seta 



The seta of the pleurocarpous mosses is nearly always 

 reddish-hrown. 



