HYPNACEAE 215 



leaves of this character and with stems nearly pros- 

 trate and irregularly or distantly pinnately branched. 

 It may be distinguished from Stcrcodon arcuatus (p. 

 236), which also has leaves turned to one side, by its 

 smaller size, shorter branches, leaves more strongly 

 curved, and more frequent fruit. 



Plants growing in loose, soft mats on the ground in 

 swamps, or floating in stagnant pools, light green or brown- 

 ish ; common ; fruit not common. 



Stems prostrate, slender, sometimes 

 floating; variable in length, reaching 

 several inches; irregularly branched, 

 hooked at tips, from curved leaves. 



Leaves long, hair-like, spreading; 

 mostly straight; curved chiefly at ends 

 of stems and branches; light green or 

 brownish. 



Seta 2-3 inches long; reddish -brown. 



Capsule long-cyHndrical, inclined, 

 curved; yellowish- or reddish-brown; 

 mature in summer. 



Range, almost a cosmopolitan species. 



Drepanocladus fluitans (Dill.) ^^^P^^^odadus jiuitans 

 Warnst. (Hypnum fluitans L., A7nhlystcgium fluitans 

 De Not.) and the varieties vary in length of stem and 

 leaves; also in the number of branches. The long 

 forms with long leaves may be confused with Dichc- 

 ly?na (p. 177). The stems of Dichclyma are more 



