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acuminate. Capsule oblique eubobovate gen. strumose; annulue 

 distinct; teeth cleft. Stem higher than in the last. — Lime- 

 stone rocks r. Anier. Can. Rocky mts: Macoun. 



B. Leaves faintly mamillose and subulate-acuminate; alar 

 cells us. distinct; costa nearly smooth at back. Capsule us. 

 annulate; teeth cleft. 



a. Capsule strumose somewhat large. 

 e.C.strumJferum Ehrhart. — Dicranum E.; Cynodontium Notaris. 



Leaves long denticulate above; perichetial with subulate acu- 

 men. Capsule suboblong oblique; teeth papillose reddish or 

 orange; pedicel long. Tufts somewhat high. — On rocks r. on 

 trees, princ. in northern districts. Eur. Sweden common, Nor- 

 way, Switzerl.! sEngl. r.»: Braithwaite. Amer. Can.: Macoun; 

 Waghorne. 



b. Capsule not strumose gen. not large. 

 T.C.polycarpum Ehrhart. — Dicranum E.; Cynodontium Schimper. 



Ijeaves more or less denticulate us. long. Capsule us. finally 

 subcylindric and sulcata, less often oblique; teeth as in the 

 last; pedicel us. not long and often thin. Tufts more or less 

 radiculose. — Eocks not r. Eur. Sweden, Norway, Switzerl.! 

 Finl.: Lindberg. Amer. Can.: Macoun; Drummond; Waghorne. 

 Greenl.: Vanhoeffen. 



* C.torquescens Bruch. — Dicranum Bruch; Cynodontium Lim- 

 pricht; Oncophorus polycarpus *nigricans Kindb. Laubm. Scliwed. 

 u. Norw. 



Leaves less long and often nearly smooth, gen. subobtuse 

 and faintly denticulate. Capsule erect symmetric faintly striate, 

 often small; annulus not revoluble. Tufts often low and blackish 

 below. Habit of G. Bruntoni. — ■ Rocks. Eur. not r. Sweden, 

 Norway, Switzerl.! Austria: A. Schmidt. 



* C.fallax Limpricht. 



Leaves long acute denticulate also below middle, distinctly 

 mamillose. Capsule erect symmetric faintly striate; annulus 

 not revoluble. Tufts us. green and somewhat high. — • Rocks. 

 Eur. Norway! Sweden: E, Jsederholm. Amer. r. Can.: Waghorne. 

 S.C.SUbalpestre Kindb. cat. Canad. m. 



Differs from G. polycarpum: Leaves smaller nearly pellucid, 

 reflexed only at one border, gen. smooth and entire. Capsule 

 small not distinctly annulate; pedicel scarcely 1 c. m. long. 

 Stem eradiculose very short. — Amer. r. Can.: Drummond n. 

 lOo, com. Macoun. 



