— 84 — 



lid obtuse; pedicel not long. Tufts dense dark green or blackish. 

 Branches not long. — Stones in alp. rivulets gen. r. Eur. 

 Norway! Amer. r. Can.: Macoun. 



C. Alar leaf-cells not red, gen. distinct; the inner sublinear. 

 Stem soft. 



lo.C.molle Dickson. — Hj-pnum Dicks.; H. dilatatum Wilson; 

 H. alpinum Schimper. 



Leaves subcircular or oval-ovate with contracted base, obtuse 

 or short-apiculate, crenulate or sinuolate above, crowded; alar 

 cells gen. small; costa us. double. Capsule arcuate; lid obtuse 

 or apiculate; pedicel short. Tufts dense brown or brownish 

 green often with golden glossy branch-tops. Stem sometimes 

 denudate below; branches more or less turgid. — Wet alp. 

 rocks. Eur. not r. Norwaj'! Amer. r. Can.: Macoun. 

 iB.C.alpestre Swartz. — Hypnum Sw. 



Leaves entire suboblong, narrower than in the last and less 

 patent when moist, crowded, either obtusate apiculate or short- 

 acuminate acute; alar cells often large, sometimes orange-colored; 

 costa often simple. Capsule as in the last but often with 

 longer pedicel. Habit of the last. — Wet rocks in northern 

 alps r. Eur. Norway! Amer. Can.: Macoun. Greenl.; Berggren. 

 IT.C.Columbico-pahistre C. M. et Kindb. — Hypnum cat. 

 Can. m. 



Leaves suboblong denticulate above middle, crowded; alar 

 cells large; costa simple, reaching above middle. Capsule ar- 

 cuate; lid flat mamillate; pedicel somewhat long. Tufts green 

 or golden glossy. — Wet rocks r. Amer. Can. Brit. Col.: Ma- 

 coun. 

 IS.C.cirCBlifolinni C. M. et Kindb. — Hypnum cat. Can. m. 



Leaves subreniform or subcircular with cordate base, faintlv 

 crenulate all around, distant and green; cells and costa as in 

 C. molle. Capsules unknown. — Rocks below alps r. Amer. 

 Can. N. Brunswick: Moser. 



B. Dioecious very r. fruiting. Leaves us. entire; alar cells 

 very small or indistinct. Stem often simple. 



a. Stem julaceous eradiculose. Leaves entire obtusate crow- 

 ded; costa short. 

 19.C.turgescens T. Jensen. — Hypnum T. Jens. 1858. 



Leaves large ovate or broad-ovate obtuse, sometimes short- 

 apiculate, brown or green, nearly appressed when dry; cells 

 oblong-lanceolate, the alar indistinct; costa double. Stem thick 

 very turgid not rigid. Swamps in alps or heaths (in Sweden) 



