_ 257 — 



*B,ticinensisKindb, revue bryol. 1892. : r 



Leaves short oblong-lingulate or subspathulate brown-green? 

 costa short-excurrent. Capsule oblong. Peristome gen. onCe 

 contorted. — Schistose siliceous rocks. ; Eur. Switzerl. ne.ar 

 Luganol 



B. Leaves small, less reflexed. Tufts densely cohering. 

 4.5.B.obtusifolia Schleicher. — Tortula Schl; Barbula Schwse- 

 grichen; Desmatodon Jur.; D. flavicans Br. eur. 



Leaves short oblong-lingulate obtuse not reflexed in upper 

 third, smaller than in B. muralis and not limbate; upper cells 

 opake; costa percurrent or very slightly excurrent. Capsule 

 suboval or oblong; teeth short brown-red scarcely once contor- 

 ted; tube sometimes well-distinct; annulus double. Tufts green 

 somewhat dense. Us. monoecious. — Rocks in higher alp, 

 region r, Eur. Switzerl. 1750 metr. a. sea! Italy: Philibert 

 {Asia, Caucase: Brotherus). Amer. Can.: Drummond 115, com. 

 Macouh, ■ 



46.B-Bolaenderi Lesquereux. — B. carnifolia C. M. et Ki,ndb. 1, c. 

 Upper leaves ]anceolate4ingulate obtuse or , subacute, not 

 reflexed in upper third, not limbate; upper cells subpellucid 

 faintly papillose; costa not or slightly, excurrent. Capsule 

 suboblong; teeth once contorted; annulus sim.ple persistent. Tufts 

 dirty green. Dioecious. Resembles B. muralis *oestiva. ; — 

 Amer. r. Can.: Macoun. U. S.: M. A. Howe, com. Cardot. . ' ' 

 4. Unguiculatffi. 



A. Annulus of capsule double. Leaves often limbate by 

 one cell-row. Monoecious. i '. 

 47.B.Yahlii Schultz. — • Tortula Wilson; Braithwaite. 



Upper leaves sublinear or oblong-lanceolate obtuse,, slightly 

 and partly or not. reflexed, subpellucid faintly papillose above; 

 costa long-excurrent. Capsule subcylindric; teeth twice contor- 

 ted; tube distinct. Tufts yellowish green. Resembles B. cunei- 

 folia and B. muralis. — Damp clay soil in warmer districts r. 

 Eur. »Engl.»: Braithwaite. Amer. »U. S.»: Lesq. et Jam. 



B. Annulus not distinct. Leaves not limbate. Dioepioup. 

 a. Perichetial leaves not sheathing. 



48.B.uiignicnlata Hudson. — Bryum Huds.; Barbrtla Hedwig. 

 Leaves obtusate at apex (obtuse or subacute) reflexed, below 

 middle, sublinear or subovate-oblong or broadly oblong-lanceolate, 

 suberect when moist; upper cells opake; the basal narrow-jec- 

 tangular; costa us, ejccurrent r, pe^cijrrent. Per jcheti^U., leaves 



