— 117 — 



short. Habit of B. velutinum. — Logs in woods r. Amer. U. 

 S.: Joor, com. C. Mueller. 



B. All leaves nearly entire, not falcate. 



a. Dioecious. Branches julaceous or subjulaceous. 

 ST.B.californicum Lesquereux. — Hypnum Lq.; Brachythe- 

 cium Kindb. 



Leaves recurved below, long-decurrent somewhat distant; alar 

 cells dusky obsolete, the others lanceolate; costa reaching above 

 middle or shorter. Stem-leaves entire ovate-oblong; branch- 

 leaves broadly ovate-lanceolate sometimes faintl}^ sinuolate. 

 Capsule oval-oblong arcuate; pedicel short, rough above. Tufts 

 pale green loose sparingly radiculose. Stem subpinnate. -- Rocks 

 and dry sand r. Amer. U. S.: Bolsender, com. C. Mueller. 

 38.B.Fitzgeraldi C. Mueller in Flora 1887. 



Leaves more or less (often faintly) recurved, nearly entire, 

 ovate-oblong not long-acuminate, acute or with short filiform 

 point, crowded and not distinctly decurrent; alar cells oval or 

 subquadrate reaching to costa, the others linear; costa not long, 

 vanishing below acumen. Capsules unknown. — Amer. r. U. 

 S. Florida: Fitzgerald, com. C. Mueller. 



b. Monoecious. Branches often compressed, not julaceous. 

 39.B.I)onne1Iii Austin. — Hypnum Aust.; Brachythecium 

 Kindb. 



Leaves narrowly ovate-lanceolate long-subulate often filiform- 

 pointed, entire or at acumen obsoletely sinuolate, distant not 

 decurrent; alar cells hyaline somewhat large, the others linear- 

 lanceolate; costa vanishing near middle or shorter. Capsule 

 small suboval horizontal faintly curved; pedicel short smooth. 

 Tufts glossy green. Stem subpinnate creeping. — Rocks and 

 logs r. Amer. Can.: Macoun. 



C. Leaves sometimes falcate princ. when dry; those of stem 

 nearly entire, those of branches distinctly denticulate. Monoe- 

 cious. 



a. Leaves plicate, those of branches denticulate at acumen. 

 40.B.calcareum Kindb. revue bryol. 1895. 



Leaves crowded long-acuminate filiform-pointed more or less 

 recurved, incurved-falcate when dry, patent when moist; angular 

 cells short, special alar few hyaline much larger, the others 

 linear. Stem-leaves with broad base; costa short gen. vanishing 

 near middle. Branch-leaves narrow; costa nearly reaching to 

 acumen. Capsule small arcuate; cilia not appendiculate; lid 

 apiculate; pedicel smooth about 1 ceutim. long. Tufts dense 



