— 2B5 — 



blackish when dry. — Higher alp. region princ. on summits r. 

 Eur. Switzerl. 1700 metr. a. s.l 



b. Leaves not recurved; the perichetial much larger. 

 75.G.atricha C. M. et Kindb. 1. c. 



Leaves small short ovate-oblong subobtuse muticous, appressed 

 when dry. Capsule suboblong; teeth yellow or hyaline above, 

 orange near base; lid rostrate. Tufts densely cohering about 

 1 c. m. high, dark green or fuscous when dry. — Alpine 

 rocks r. Amer. Can. Brit. Col. 1250 metr. a. s.: Macoun. 



C. Leaves recurved; the perichetial not much larger. 

 76.G.conferta Funck. 



Leaves broadly ovate-lanceolate subacute smooth not large, 

 often with rough hairpoint, us. appressed when dry; cells not 

 distinctly sinuous. Capsule oblong-oval; teeeh orange; lid api- 

 culate; calyptra mitriform. Tufts dense but loosely cohering, 

 1 — 2 c. m. high, fuscous when dry. — Rocks not common, 

 Eur. Sweden!; Lindberg. Switzerl.l Amer. Can.: Macoun; Wag- 

 horn e. 

 * Cr.tenera Zetterstedt. 



Leaves very small sublinear nearly subulate, nearly spirally 

 twisted when dry; cells smaller. Capsules unknown. -^ Arctic 

 distr. r. Norway: J. E. Zetterstedt, com. C. J. E. Haglund; 

 W. Baur. 



103. Bacomitrium Bridel. 



A. Leaves with papillose hyaline hairpoint or acumen. Beak 

 of calyptra rough above. 



1. Lanuginosa. Leaves fimbriate at acumen; green cells 

 smooth. Capsule longer than beak; pedicel rough. 



2. Canescentia. Leaves serrulate at acumen; all cells us. with 

 somewhat long papillae. Capsule gen. not longer than beak; 

 pedicel smooth. 



B. Leaves hairless or with a serrulate not papillose hair- 

 point. Capsule gen. longer than beak; pedicel smooth. Beak 

 of calyptra sometimes wholly rough (viz. in B. fasciculare). 



3. Fapillosa. Leaves with short papillae, often hairless. 



4. LaBTifolia. Leaves smooth us. with long hairpoint. 



1. Lanuginosa. 

 l.R.hypnoides L.; Willdenow. — Bryum L.; Trichostomum 

 Willd.; Racomitrium Lindb.; R. lanuginosum Bridel. 



Leaves long ovate-lanceolate recurved below; green cells gen. 

 narrow, the alar rectangular; costa smooth. Pedicel short. Stem 

 ramose often to 10 c. m. long. — Stone and stony ground also 



