— 46 — 



decurrent; alar cells snboval, apical and inner basal sublinear, 

 the others oval-oblong. Branch-leaves ovate mostly obtusate 

 sometimes short-acuminate or apiculate; cells suboval except 

 the inner basal. Outer perichetial leaves suboblong with long 

 narrow falcate acumen; inner much narrower, gradually subu- 

 late and nerveless with linear cells. Capsule inclined oval not 

 curved (in Canadian specimens), sometimes (according to figu- 

 res by Renauld and Cardot) suboblong oblique or faintly curved; 

 teeth yellow; segments rimose; cilia short nodose; lid high con- 

 vex with short point; pedicel smooth 1,5 — 3 centim. long. 

 Stem pinnate. Tufts green very loose. Dioecious. — On wet 

 rocks and base of trees in alp. regions; Amer, Western slope 

 r. Can.: Maooun. U. S.: Roell, com. Cardot. 



b. Leaves papillose; apical cells at least on stem-leaves) 

 narrow, also the inner basal. 



'2.H.sqiiaiT0Suliim Voit. — Hypnum Voit; Heterocladium 

 Lindb.; Hypnum dimorphum Brid.; Heterocladium Br. eur. 



Leaves denticulate all around, not recurved, pellucid; inner 

 cells gen. rotundate; costa us. double. Stem-leaves from round- 

 ovate decurrent base gen. long-acuminate, r. obtuse, us. sprea- 

 ding when dry. Branch-leaves broad-ovate obtusate or short- 

 acuminate, often appressed when dry. Outer perichetial leaves 

 nerveless with falcate acumen. Capsule inclined subovate or 

 arcuate; teeth yellow; segments rimose; cilia long; lid subconic. 

 Stem often subpinnate; branches obtuse. Dioecious r. fruiting. 

 — Earth and rocks. Eur. not r. Sweden, Xorwav, Switzerl.! 

 Amer. eastern distr. r. Can.: Moser; Waghorne. 

 B.H.Aiistini SulUvant. — Leskea Sull. ic. muse; Heterocladium 

 Kindb. 



Leaves entire, slightly recurved below, ovate at base, not 

 spreading when dry; costa simple faint sometimes prolonged to 

 acumen. Stem-leaves short-acuminate; branch-leaves with lon- 

 ger, subulate acumen. Perichetial leaves with subfiliform point, 

 inner erect. Capsule suboblong erect; lid obtuse; endo.stome 

 unknown. Stem not pinnate. Monoecious. — Trees and stone- 

 walls r. Amer. U. S.: Austin, com. Macoun. — The figures 

 by Sullivant not are exactly agreeing with typical specimens. 



B. Leaves uniform papillose denticulate not recurved, not 

 spreading when dry; upper cells short •nide, alar not defined; 

 costa not reaching above middle. Capsules unknown. Stem 

 irregularly divided ivithout paniphyllia. Dioecious. 

 4.H.tri8te Cesati. — Leskea Ces.; Heterocladium Kindb.; Ano- 

 CQodon Sullivant. 



