— 159 — 



mouthed; pedicel thin often very long. — Earth and rocks 

 also in higher alp. regions. Eur. common. Sweden, Norway, 

 Switzerl.l ^mer. Can.: Macoun; Waghorne. Alaska: J. M. Macoun. 

 e.P.dentatum Menzies; C. M. syn. — Pogonatum Sull. ic. m. 



Leaves as in the last but more sharply dentate, the upper 

 with short reddish or whitish awn by the excurrent costa; api- 

 cal cell of lamellae truncate creuulate. Capsule small narrow 

 often wide-mouthed; pedicel not long. Stem not high, some- 

 times simple. Eesembles a small alpine variety of the last. 

 — In alps and arctic distr. r. Amer. Alaska: J. M. Macoun. 

 Can. Brit. Col. and Labrador: Macoun. U. S.: Austin; Oakes. 



b. Leaves faintly denticulate. Stem often simple. 

 7.P.capillare Richard. — Pogonatum Sulliv. ic. m. 



Leaves short obtusate subobtuse distantly denticulate; wings 

 of lamina not prominent; apical cell of lamellae truncate crenu- 

 late; costa not excurrent. Capsule oblong-cylindric faintly pa- 

 pillose, not wide-mouthed. Habit of the last. — Alps and 

 arctic distr. r. Eur. Russia: Brotherus. Amer. U. S.: Rudkin, 

 com. Mrs Britton. 



S.P.Wahlenbergii Kindb. rev. bryol. 1894. — »P. capillare 

 var. minus Wahlenberg fl. lapp.»: Lindb. et Arnell. 



Differs from the last in leaves subacute nearly entire; wings 

 of lamina prominent, very much broader belovy. Capsule oval 

 or cylindric. — Northern alp. distr. r. Eur. »Sweden»: Wahlenb. 

 (Asia, Sibiria: H. W. Arnell). 



II. Pogonatum Bridel, in part. 



A. Leaves falcate when moist, patent or spreading when 

 dry; lamellae about 60. Outer perichetial leaves very much 

 longer. Pedicel of capsule finally brown. 



9.P.Macoiinii Kindb. bull. Torr. club 1889. 



Leaves very long, bordered by the wings of the strongly 

 dentate lamina, long-subulate; awn long rough reddish. Peri- 

 chetial leaves rough near apex, the inner shorter more acute. 

 Capsule oblong-cylindric strangulate, larger than in P. alpinum; 

 lid large conic-subulate, half as long as capsule. Higher and more 

 robust than allied species. — Rocks and earth princ. in alp. 

 region r. Amer. Pacif. distr. Can. to 1350 metr. a. s.: J. Ma- 

 coun. Alaska: J. M. Macoun. 



B. Leaves straight or faintly curved when moist, more or 

 less appressed when dry; lamellae about 30. Perichetial leaves 

 not longer. Pedicel yellowish. 



