— 216 — 



3. Trichophylloideje. Leaves less narrow, ovate-lanceolate 

 not crisped. Capsule often striate-Fulcate; pedicel arcuate when 

 moist. Plants often robust. 



4. Ovataefornies. Leaves ovate-lanceolate not crisped. Cap- 

 sule smooth; pedicel not arcuate. Plants gen. not robust. 



b. Leaves channelled above, not recurved. 



5. Unicoloriformes. Leaves smooth us. narrowly ovate- 

 lanceolate, not or faintly crisped; upper cells us. opake. Pe- 

 dicel straight or arcuate, sometimes not emergent. Dioecious. 

 iV. Pseudo-Schistidium. Leaf-cells sometimes sinuous. Cap- 

 sule immersed longer than pedicel; lid not systylic. 



1. Piliferae. Leaves channelled or near apex carinate, re- 

 curved below at both sides; cells sinuous. Peristome present. 

 Dioecious. 



2. Crinilae. Leaves concave not recurved; cells often not 

 sinuous. Peristome present or wanting. Us. monoecious. 



V. Schistidium. Leaf-cells sometimes sinuous. Capsule im- 

 mei-sed longer than pedicel; lid systylic. Monoecious. 



1. Platyphylloideae. Leaves channelled; cells gen. not 

 sinuous. 



2. Apocarpaeforines. Leaves carinate; cells not r. sinuous. 



I. Streptophyllum Kindb. 

 A. Leaves sublinear-subulate, gradually or nearly gradually 

 narrowed from the not distinctly sheathing and (when moist) 

 not appressed base; hairpoint short often wanting. 



l.G.torquata Hornschuch. 



Leaves gradually narrowed, open when moist; cells thick- 

 walled finally yellow, nearly all rectangular and sinuous; costa 

 pellucid. Tufts not cohering finally yellowish (when moist). 

 Capsule with arcuate pedicel. — Rocks princ. below alps. Eur. 

 Sweden!; Lindberg. Finl.: Brotherus. Amer. Can.: Macoun. 

 U. S. fruiting: Leiberg, com. Mrs Britton. 

 2.G.prolifera C. M. et Kindb. cat. Can. m. 



Leaves nearlj' gradually narrowed, spreading when moist; 

 cells thin- walled faintly yellowish: basal narrow-rectangular and 

 more or less sinuous, upper subquadrate not sinuous; costa 

 faintly pellucid. Tufts cohering blackish below. Capsules 

 unknown. Stem sometimes proliferous with long green loosely 

 foliated shoots. — Alp. rocks r. Amer. Can. Brit. Col.: Maeoun; 

 N. Foundl.: Waghorne. 



