— 168 — 



B. Leaves short suboblong nearly opake below, pellucid at 

 apex. Capsule small; pedicel scarcely exserted above upper 

 stem-leaves. 

 lO.F.STibbasilaris Hedwig; Sullivant ic. muse. 



Capsule obloDg-C3'lindric; lid much shorter; teeth not long 

 and not deeply cleft with subulate not filiform-pointed legs; 

 pedicel emerging from lower part of stem. Leaves small, den- 

 ticulate below, stronger senate near apex, subobtuse, not hya- 

 line at margins; costa subpercurrent. Tufts low; stems fasci- 

 culate — On trees r. Amer. Can.: Dearness, com. Maeoun; 

 Drummond, com. Maeoun. U. S.: Sullivant, com. C. Mueller. 

 4. Osmundoidei. 



A. Leaves gen. large; costa excurrent. Stems not tufted. 

 Pedicel of capsule basilar. 



ll.F.taxifolius L. — Hypnum L.; Fissidens Hedwig. 



Leaves suboblong hyaline-crenulate often acute, not densely 

 crowded. Capsule suboblong; Ud nearly as long. Stems fasci- 

 culate; branches simple not long us. decumbent. — On earth. 

 Eur. not r. Switzoi.! Sweden: S. Hardin; M. Hu.-s. Engl.: 

 Rogers, Amei-. »U. S. »: Lesq. et Jam. 



B. Leaves not large; costa not excurrent. Pedicel terminal. 



a. Tufts tomentose often high. Calyptra mitriform lobate. 

 12.F.OSniundoldes Swartz. — Dicranum Sw.; Fissidens Hedwig. 



Leaves suboblong subobtuse often apiculate, not opake, in 

 many pairs; costa subpercurrent. Capsule oblong-oval. — Wet 

 rocks and heaths also in alps. Eur. not r. Sweden, Norway! 

 Amer. Can.: Maeoun. 



b. Stems low not tomentose, not or ver^' loosely tufted. 

 Calyptra cucullate. 



IS.r.exilis Hedwig. 



Leaves very pellucid suboblong subacute in few pairs: upper 

 sometimes sublinear-lanceolate; costa percurrent. Capsule thick 

 oval-oblong. Monoecious. Plants very soiall. — On earth. 

 Eur. not r. Sweden: C. Hartman; Arven. France: Husnot. 

 *F.Hallii Austin. 



sPlants somewhat larger; dioecious. — Atner. r. U. S. Texas: 

 E. Hall»: Lesq. et Jam. 

 14.F.RaTeiiclii Sulhvant icon, muscor. 



Leaves small opake subliuear or broad-lanceolate subacute in 

 2 — 10 pairs; costa subpercurrent. Perichetial leaves with broadly 

 limbate wings. Capsule suboblong gen. erect; lid rostellate much shor- 

 ter. Dioecious. — Damp earth r. Amer. U. S.: Langlois, com. Cardot. 



