— 162 — 



Perichetial leaves entire somewhat long-acuminate, lamellate 

 above; awn rough and red. Capsule rectangular-prismatic; pe- 

 dicel often very long. Stem not much naked and gen. not 

 tomentose, sometimes branched. — Heaths and woods common 

 but less often in alps. Eur. Sweden, Norway, Switzevl ! Amer. 

 Can.: J. Macoun. Alaska: J. M. Macoun. 

 IS.P.strictnm Banks. 



Differs from the last: Leaves shorter with shorter acumen, 

 u^;. appressed when dry; lamellae about 30. Capsule cubic; 

 pedicel less long. Stem tomentose us. simple. — Swamps 

 princ. in alps not common. Eur. Norway! Amer. Can.: Macoun; 

 Waghorne. Greenl.: Vanhoeffen. 



19.P.lijperboremii R. Brown. 



Leaves short short-acuminate entire, straight and not much 

 patent when moist, appressed when dr^'; lamellae about 30; 

 costa f-mooth; awn short faintly rough, often (at leaft in upper 

 leaves) partly whitish, in some leaves wholly red. Perichetial 

 leaves entire somewhat long-acuminate; awn whitish above, 

 nearly smooth. Stem of female plants branched often tomen- 

 tose. Capsule cubic; pedicel not long. Male plant with shorter 

 broader leaves, disposed in distant fascicles. Habit of the last. 



— Dry and wet places in northern alps. Eur. Norway! Finl.: 

 Brotherus. Amer. Greenl.: Berggren; Vanhoeffen. Can. N. La- 

 brador: Macoun 1896. 



20.P.l)oreale Kindb. Laubm. Schwed. u. Norw. 



Differs from the last: Leaves gen. dentate near apex below 

 the awn, with longer acumen; costa rough at back; awn longer 

 always whitish above. Perichetial leaves more distinctly den- 

 ticulate; awn rough nearly whoUj' whitish. Stem not tomentose. 



— Dry places in northern alps r. Eur. Norway in Dovrefjeld! 

 Amer. Greenl.: Berggren; Vanhoeffen. Alaska: J. M. Macoun. 

 Can. Labrador: Waghorne. 



21.P.piliferum Schreber. 



Leaves short entire short-acuminate or subobtusate, appressed 

 when dry; lamellae about 30; costa smooth; awn long wholly 

 whitish nearly smooth. Perichetial leaves not lamellate. Cap- 

 sule short-prismatic or cubic, inclined or suberect. Stem short 

 simple, naked at least in lower half; the foliated part subcla- 

 vate. — Dry heaths also in alp. regions common. Eur. Swe- 

 den, Norway! Amer. Can.: Macoun. 



b. Leaves denticulate not convolute, long and long-subulate, 



