— 163 — 



us. plane; lamellae very numerous, their apical cell not papillate; 

 awn red-brown. Stem and pedicel u?. long. 

 22.P.attenuatimi Menzies. — P. formosum Hedwig. 



Leaves plane crowded, dentate to a long sheath, us. green; wings 

 very narrow; apical cell of lamellse suboval. Perichetial leaves 

 green not or faintly hyaline in lamina; awn rough. Capsule 

 us. long rectangular-prismatic brown; lid short broad-conic with 

 short point; pedicel reddish. Spores about 0,01 m. m. Stem 

 tomentose near base. — Dry woods often in subalp. districts. 

 Eur. not r. Sweden! Amer. r. Can.; J. Macoun; Waghorne. 

 Alaska: J. M. Macoun. 



* P.pallidisetum Funek. 



Capsule short-prismatic yellowish; lid nearly flat with narrowly 

 conic beak; pedicel yellowish or pale red. -- Woods r. Eur, 

 Sweden, Germany! Amer. »U. S.»: Lesq. et Jam. 

 23.P.ohioen8e Eenauld et Cardot. — P. decipiens Limpricht. 



Differs from P. attenuatum: Upper leaves (near the periche- 

 tial) with shorter sheath; apical cell of lamellse often transversely 

 dilated. Capsule shorter, narrowed below; lid with narrowly 

 conic beak. Stem not tomentose, us. less long. — Earth and 

 rocks in woods. Eur. r. Switzerl.l Amer. not r. Can.: Macoun; 

 Waghorne. U. S.: Wetherby; Lapham, com. Cardot. 

 24.P.'Beliringianiim Kindb. rev. bryol. 1894. 



Differs from P. attenuatum: Leaves laxly disposed, entire 

 below middle of lamina, faintly denticulate above, nearly chan- 

 nelled; cells of sheath shorter and broader. Stem not tomen- 

 tose. Capsules unknown. — Arctic distr. r. Amer. Alaska: 

 J. M. Macoun. 

 25.P.cominuiie L. 



Leaves plane crowded, dentate to the sheath, us. rufescent, 

 often falcate when moist; apical cell of lamellee often emargi- 

 nate. Perichetial leaves hj^aline, us. serrulate near apex; awn 

 entire. Capsule long or short; lid short-rostellate with us. 

 narrow beak. Stem not often tomentose, us. very long. — 

 Heaths and turf-moors princ. in lower regions, less often in 

 alps. Eur. common. Sweden! Amer. less common. Cau.: 

 Macoun (a var. vs^ith shorter stem and us blackish calyptra). 



* P.perigouiale Michaux 



Leaves not or faintly rough at back, us. green; perichetial 

 entire more numerous. Capsule short. Stem and pedicel less 

 long. — Dry places. Eur. princ. in southern distr. Switzerl.l 

 Amer. Can.: Macoun. 



