— 309 — 



above, very papillose with long papillee, us. slightly crisped; 

 nearly all basal cells long. Capsule striped oblong finally cy- 

 lindric; teeth us. orange. Tufts yellowish green. — On tvees' 

 in warmer districts or r. on stones. Eur. r. Sweden: Wahl- 

 stedt. Denmark: M. F. Lange. France: Husnot. Amer. Can. 

 not r. in Pacif. distr.: Macoun. 



* O.ulotseforme Renauld et Cardot. 



Leaves distinctly crisped. Peristome pale. — Amer. Can,: 

 Macoun. U. S.: Henderson, com. Cardot. 

 43.0. Winter! Schimper; Limpricht. 



Leaves short-acuminate acute, recurved nearly all around, 

 faintly papillose with short papillae, scarcely twisted, gen. shortei' 

 than in the last; outer basal cells short. Capsule faintly striate 

 oblong-cylindric; teeth pale. Tufts green, brown below. — Trees 

 and rocks r. Eur. Germany: Winter, com. C. Mueller, Amer. 

 Can. Pacif. distr.: Macoun. 



4. Diaphana. 

 44.0.diaphanum Gmelin. — Bryum Gm.; Orthotrichum Schrader. 



Leaves broadly ovate-lanceolate nearly smooth. Capsule 

 oblong smooth when young; neck short; calyptra nearly glabrous. 

 Stem 1 cm. or shorter. — On trees or r. on stones. Eur, 

 not r. Sweden, Germanyl Amer. r. »U. S.»: Lesq. et Jam. 



* O.canum Mitten. 



i Capsule emergent. Leaves with shorter hairpoint. — Amer. 

 r. Can.: Drummond»: Lesq. et Jam. 



5. Rivularia. 

 45.0.riTulare Turner. 



Leaves decurrent nearly smooth; alar cells rectangular very 

 large. Capsule oval short-necked: teeth opake. Tufts blackish. 

 Stem often long. — Stones and trees in running water r. Eur. 

 Engl.: Rogers. France: Le Johs; Husnot. Amer. U. S.: Hen- 

 derson, com. Cardot. 

 46.0.euryplij'llum Ventmi. 



Differs from the last: Leaves not distinctly decurrent; alar 

 cells short-rectangular or indistinct. Capsule broad-oval; teeth 

 less papillose. Stem about 2 — 3 cm. — Stones in running 

 water r, Amer. U. S.: Roell. 

 47.0.Sprucei Montagne. 



Differs from 0. rivulare: Leaves more papillose, not distinctly 

 decurrent; cells larger, the alar quadrate. Capsule smaller. 

 Tufts low dark green. — Base of trees near water r. Eur. 

 France: Philibert. ; . . 



