— 303 — 
. *(.aeuminatum Philibert. 
I Capsule more abruptly narrowed below, sometimes suboval; 
= teeth rudimentary. — Trees r. Eur. France: Philibert. Italy: 
Venturi. 
* Q.prz:emorsum Venturi. 
Leaves less papillose. Capsule oval; teeth often rudimentary, 
deflexed when evolute; calyptra hairy. Stem 2—3 c. m. high. 
Rocks r. Amer. U. S.: Roell. 
4. Rupestria. 
14.0.rupestre Schleicher. 
Leaves ovate-lanceolate often rigid, us. faintly papillose and 
not subulate-acuminate. Capsule brown gradually narrowed 
below, us. immersed; pedicel us. shorter; teeth yellowish. Tufts 
us. brown or blackish and riot high. — Us. growing on rocks. 
Eur. common. Sweden, Norway, Switzerl.! Austria: Venturi. 
Amer. Can.: Macoun. 
* 0.Franzonii Notaris. 
Tufts green. Leaves less rigid. — On trees and rocks r. 
Eur. Switzerl.! 
* 0.Sturmii Hornschuch. 
Leaves longer acuminate subcanaliculate. Capsule arrounded 
. below; teeth paler. Tufts us. blackish. — Rocks not common. 
= Eur. Sweden, Norway, Switzerl| France: Husnot, Amer. Can.: 
Macoun. ` 
15.0.texanum Sullivant icon. muscor. ; 
Differs from O. rupestre *Sturmii; Leaves distinctly carinate 
and less rigid, sometimes nearly subulate; basal cells orange. 
Peristomial teeth dark yellow or orange. Tufts us. brown-green. 
Stem often very long. — Rocks r. Amer. Can. Pacif. distr.: 
. Macoun. 
16.0.Douglasii Duby; Lesq. et Jam. | 
- Leaves ovate lanceolate long-acuminate subsubulate very pa- 
pillose not rigid. Capsule pale brown nearly exserted, arroun- 
ded below, nearly smooth when young; teeth erect whitish or 
pale; pedicel somewhat long. Tufts yellowish green; stem often 
long. — Alp. rocks r. Amer. Pacif. distr. Can. Brit: Col: Ma- 
cota U. 8: Roe 7 r à 
5. iocarpa. s 
17.0.leiocarpum Br. eur. — O. striatum (Hedw.) Bridel. 
"Leaves ovate-lanceolate subulate-acuminate earinate us. long. 
Capsule brown-yellow suboval or oval-oblong quite smooth; 
heck not distinct; teeth opake finally appressed, orange in 
