— 801 — 
bb. Capsule us. distinctly suleate when old. 
8.0.speciosum Esenbeck. 
- Leaves ovate-lanceolate subulate-acuminate or r. subobtuse at 
‘apex, not or r, appressed when dry, faleate when moistened. 
Capsule pale brown when ripe; teeth whitish or pale yellow, 
us. appressed to it when dry; cilia not sinuous; pedicel shorter 
than capsule; calyptra hairy. Tufts us. pale or yellowish green; 
stem us. long. — On trees or less often on stones. Eur. com- 
mon, but r. in alp. regions. Sweden, Norway, Switzerl.! Amer. 
Can.: Macoun; Waghorne. 
*Q.elegans Schwegrichen. — 
Capsule pale or greenish; teeth pale yellow; calyptra nearly 
glabrous. Tufts 1—2 c. m. high. — Eur, r. »Finl.»: Lind- 
berg. Amer. »U. S.»: Cardot. (Asia, Sibiria: H. W. Arnell). 
9.0.Roellii Venturi. 
Differs from ©. speciosum: Capsule longer exserted shorter 
than pedicel; teeth pale yellow erect when dry. — Rocks r. 
Amer. U. S.: J. Roell. 
* O.stenoearpum Venturi. — O. lonchothecium C. M. et Kindb. 
Capsule less distinctly sulcate; teeth often smooth. Leaves 
. dark green nearly appressed when dry. — Rocks r. Amer. 
Can. Macoun. U. S.: Roell. 
* 0.Schlotthaueri Venturi. 
Capsule longer than pedicel; teeth sometimes appressed when 
dry. — Rocks r. Amer. U. S.: Roell. 
. 10.0.Killiasii C. Mueller. à 
Leaves ovate-lanceolate shorter and shorter-subulate than in 
= O. speciosum, appressed when dry, not falcate when moist. 
. Capsule faintly sulcate; teeth yellowish erect when dry; cilia 
sinuous; pedicel shorter than capsule; calyptra finally glabrous. 
Tufts brown 1--3 e, m. high. — Alp. rocks r. Eur. Norway, 
Switzerl. Amer. U. S.: Roell. 
2. Arctica. s 
 11.0.Pylaisii Bridel; C. M. syn. — O. Breutelii Hampe; O. 
Blyttii Schimper. 
Leaves ovate-oblong or broadly ovate-lanceolate more or less 
obtuse, narrowly or slightly reflexed, faintly open when mol- 
 Stened; cells gen. short. Capsule suboval; teeth not or faintly 
perforate; cilia short or rudimentary; calyptra hairy. 
Leaves short us. faintly papillose; costa subpercurrent. Cap- 
sule exserted distinctly sulcate; teeth opake; pedicel long. Tufts 
olive-green or brown. — Rocks near sea in northern princ. 
