— 147 — 



2. Angustifolise. 



A. Leaves long-distant gen. concave. Us. dioecious. 



a. Leaves with broad us. obtuse acumen, decurrent. 

 e.F.hypnoides R. Hartman. — F. Ravani Hy. 



Leaves ovate-lanceolate; alar cells well-defined, the others 

 lanceolate. Capsule short, oval or subcylindric; teeth red; lid 

 short-conic. Stem flaccid. Habit of Hypnum riparium. — 

 Logs and stones in stagnant or not rapidly running water r. 

 Eur. Sweden!; R. Hartman; Lindberg. France: Hy, com. Le 

 Jolis. Amer. Can : Macoun. U. S.; Roell, com. Cardot. 



* F.longifolia C. Jensen; Cardot monogr. Fontinal. 



» Leaves sharply acuminate split when old; middle cells 

 sublinear. Capsules unknown. — Eur. r. Iceland: Feddersen»: 

 Limpricht. 



T.r.NoTae Angliae Sullivant ic. m. — »F. tenella Ren. etCard.»: 

 C. M.; F. Cardoti Renauld ? 



Differs from F. hypnoides: Leaves smaller, slightly sinuolate 

 at apex; apical cells suboval, alar suboblong not well-defined 

 but impressed at angles. Capsule oval-oblong; lid long-conic. 

 — Rivers r. Amer. Can. Brit. CoL: Macoun. 



* F.involuta Renauld et Cardot. 



Leaves gen. involute at borders; cells sublinear exc. the more 

 or less distinct alar. Branches more compressed. — Amer. r. 

 U. S.: Langlois, com. Cardot. 



b. Leaves narrowly long-acumiuate acute often subulate, us. 

 not distinctly decurrent. 



S.F.dichelymoides Lindberg. 



Leaves narrowly ovate-lanceolate; alar cells somewhat well- 

 defined not distinctly impressed at angles, the others narrow 

 sublinear. Capsules unknown. Habit of Hypnum fluitans and 

 Dichelyma capillaceum. — Lakes r. Eur. Finl.: Brotherus. Amer. 

 »U. S. »: Cardot. 



* F.microphylla Schimper; Limpricht. 



»Leaves decurrent. Capsules unknown. — Lakes r. Eur. 

 Germany*: Limpricht. 



B. Leaves gen. crowded. Dioecious or (F. haltica) paroecious. 

 a. Leaves short, channelled in middle. 



9.F.maritima C. Mueller. 



Leaves broadly ovate-lanceolate obtuse or short-acuminate 

 subacute; alar cells somewhat well-defined, the others narrow 

 sublinear. Branches rigid. Capsules unknown. — Amer. r. 

 U. S. Washington in Neah-bay of Pacific sea: Eggers, com. C. M. 



