88 HOW TO KNOW THE MOSSES 



logs, and rarely on living trees; bright to dark green; fruit 

 of most species common. 



Stems erect or ascending, usually ^^-3 inches long; 

 branched by forking, or unbranched; often covered with 

 brown or whitish radicles forming a felt-like coating called 

 tomentum. 



Leaves long and narrow, often curved and turned to one side 

 (secund), more rarely equally spreading; in some species 

 crisped when dry; bright to dark green. 



Seta }i-2 inches long; sometimes two or more setae to- 

 gether ; often appearing to come from the side of the stem 

 on account of the new growth of the plant; usually reddish; 

 yellowish when not solitary. 



Capsule cylindrical, erect and symmetrical, or inclined 

 and curved; yellowish or reddish; mature in summer or 

 autumn. 



Operculum long-beaked. 



Peristome red, easily seen in some of the larger species, 

 appearing like a red band at the mouth of the capsule. 



For comparison with Catharinaea and Polytrichunij 

 which also have long narrow leaves, see p. 171. 



The different species are divided as follows : — • 



a. Capsule erect D. fulvum. D. longijolium. 



D. flagellare. D. viride. 

 D. montanum. 



b. Capsule not erect . . .D. scoparium. D. Drummondii. 



D. fuscescens. D. majus. 

 D. undulatum. 



