254 HOW TO KNOW THE MOSSES 



but about the same size as in Plagiothecium. The 

 other small moss with spreading leaves growing in 

 similar places is Amhlystegium serpens (p. 208), which 

 is much more delicate and forms much thinner 

 mats. 



79. BRYHNIA Kaur. (Bryhn-i-a) 



A small genus, found only in the Northern Hemi- 

 sphere. One species is commonly found in our range. 

 Named after Dr. Nils Bryhn, of Norway 



Plants growing in loose mats on wet ground and on 

 stones, often in beds of streams; bright or dull green; not 



glossy; common; fruit fre- 

 quent. 



Stems prostrate or ascend- 

 ing; irregularly branched; 

 branches often ascending; 

 ends of branches sometimes 

 curved, especially when dry. 

 Leaves short, straight, erect- 

 Bryhnia novae-angliae Spreading when moist; more 



closely folded when dry-, 

 sometimes too small to be seen easily; bright or dull green; 

 not glossy. 

 Seta %-yi inch long; dark reddish-brown. 

 Capsule short-cylindrical, stout; dark reddish-brown; 

 mature in winter. 



Operculum cone-shaped. 



Range, Canada, south to North Carolina and Missouri; 

 Europe; Asia. 



