— 232 — 



quadrate. Lid of capsule convex neither apiculate nor mamil- 

 late; teeth sometimes rudimentary Perichetial leaves ; vcith 

 somewhat long hairpoint; basal cells short- rectangular. Tufts 

 cohering brown-green about 2 c. m. high. — Rocks in higher 

 subalp. region r. Eur. Norway in Dovrefjeld! Austria: Kern. 

 V. Schistidium Bridel. 

 1 . Platyphylloidese. 



A. Leaves not appressed when dry; hairpoint wanting. 



a. Leaves denticulate near the obtuse apex, broadly acu- 

 minate. 



62.G.riTiilari8 Bridel. 



Leaves large ovate-lanceolate; cells large. Perichetial leaves 

 broadly obtusate; costa abbreviate. Capsule obovate finally 

 turbinate; teeth red, larger than in G. apocarpa; lid short-poin- 

 ted; calj'ptra cucullate. Tufts loose. Stem decumbent, 3 — 6 

 c. m. or longer. — Stones in water not common. Eur. Finl.: 

 Brotherus. France: Husnot. Amer. Can.: Macoun. 



b. Leaves entire nearly subulate. 

 63.G.maritima Turner. 



Leaves ovate-lanceolate recurved crowded us. crisped when 

 dry; the upper with us. excurrent costa. Capsule as in the 

 last; teeth orange; lid rostellate; calyptra us. cucullate. Tufts 

 dense pulvinate 1 — 2 c. m. high. — Rocks near sea or larger 

 lakes. Eur. not r. Sweden! Ireland: Schimper. France: Le 

 Jolis. Amer. Can.: Macoun; Roell; Waghorne. 

 * O.Agassizii Sulliv. et Lesq. — Schistidium S. L.; Grimmia 

 Lq. et J.; G. crassinervis C. M. 



Leaves less crisped; costa not or indistinctly excurrent. Lid 

 of capsule sometimes with shorter point. — Amer. Can.: J. 

 Macoun; Waghorne. Alaska: J. M. Macoun. 

 64.0.ciiic1idodontea C. Mueller. 



Leaves narrowly ovate-lanceolate not recurved, loosely dispo- 

 sed, falcate when moistened; costa long-excurrent. » Capsule 

 subglobose; teeth red; hd rostellate; calyptra mitriform»: C. M. 

 Tufts not cohering; stem about 4 — 5 c. m. long. — Amer. r. 

 Pacif. distr. U. S.: Roell, com. C. Mueller. 



B. Leaves entire nearly or completely appressed when dry, 

 often with hairpoint. Stem erect. 



a. Stem-leaves short obtuse ovate or ovate-oblong. 

 65.G.platyphylla Mitten. 



Leaves subovate muticous more or less recurved and not 

 l^rge, appressed when dry, not curved when moistened; peri-^ 



