— 85 - 



below alps r. Eur. Sweden, Norway! Amer. Can. Macoun. Greenl.: 



Berggren. 



20.C.trifarium Weber et Mohr. — Hj'pnum W. M. 



Leaves somewhat small, broad-ovate or subcircular, obtuse 

 or subacute, brownish, strongly appressed when dry; lower 

 basal cells short dilated, the others eublinear: costa sometimes 

 simple. Capsule small suboblong or faintly curved; lid convex 

 short-apioulate. Stems (branches) gen. very long and not tufted, 

 not thick but very rigid when dry. Resembles C. sframineum 

 — Peat-bogs r. Eur. Norway! Sweden: R. Hartman; 0. W. Re- 

 delius. Amer. Can. fruiting: Macoun. 



b. Stem not julaoeous, sparinglj"^ radiculose. Leaves faintly 

 denticulate above, short-acuminate somewhat distant; costa 

 sometimes prolonged and simple. 

 21.C.SUbmolle Kindb. — Limnobion rev. bryol. 1895. 



Leaves with subovate base, sometimes acute, not falcate; 

 cells linear, alar nearly indistinct. Tufts loose brown. Cap- 

 sules unknown. — Rivulets in higher alp. region r. Eur. 

 Norway in Snehsetten: D;r P. Olsson. 



4. Montaniformia. 



A. Dioecious. Capsules unknown. Leaves dentate-serrulate. 

 22.C.micans Wilson. — Hypnum Wils.; Chrysobryum Lindb.; 

 Sulliv. icon. muse. 



Leaves broad-ovate or subcircular obtuse or acute, sometimes 

 short-acuminate, recurved below, serrulate to below middle, 

 not or slightly curved, subdecurrent, crowded or subdistant; 

 cells gen. suboblong, inner basal yellow; costa gen. short and 

 double. Tufts brown with golden glossy branch-tops. — Wet 

 rocks r. Eur. Irel.: G. A. Holt. Amer. »U. S.»: Sulliv. 



B. Monoecious. Capsule small subovate or arcuate; lid obtuse; 

 pedicel short. 



a. Leaves crowded, not or indistinctly decurrent, denticulate 

 at least above middle; costa us. short and double. 

 23.C.pseud-arcticum Kindb. — Hypnum cat. Can. m. 



Leaves broad-oval or subcircular gen. obtuse, denticulate 

 above middle, us. not distinctly falcate when moist; cells sub- 

 linear-lanceolate except the hyaline alar. Tufts brown with 

 green or glossy green branch-tops. Resembles a small variety 

 of C. palustre, which differs in entire leaves and not annulate 

 capsule. — Wet stones in subalp. region r. Amer. Can. Brit. 

 Col.: Macoun. 

 24.C.montanuiii Wilson. — Hypnum Wils. 



Leaves Bubovate acute apiculate or short-acuminate, denticulate 



