—-— X us 
decurrent; alar celle suboval, apical and inner basal subline 
the others oval-oblong. Branch-leaves ovate mostly obtus 
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: Macoun. U. S.: Roell, com. Cardot. r 
b. Leaves papillose; apical cells (at least on stem-leaves) 
narrow, also the inner basal. ; n 
2.H.squarrosulum Voit. — Hypnum  Voit; Heterocladium 
Lindb.; Hypnum dimorphum Brid.; Heterocladium Br. eur. 
Leaves denticulate all around, not recurved, pellucid; ini 
cells gen. rotundate; costa us. double. Stem-leaves from roun 
ovate decurrent base gen. long-acuminate, r. obtuse, us. spr 
ding when dry. Branch-leaves broad-ovate obtusate or shot 
acuminate, often appressed when dry. Outer perichetial leav 
nerveless with falcate acumen. Capsule inclined subovate 
arcuate; teeth yellow; segments rimose; cilia long; lid subcom 
Stem often subpinnate; branches obtuse. Dioecious r. frui L 
— Earth and rocks. Eur. not r. Sweden, Norway, Swit 
Amer. eastern distr. r. Can.: Moser; Waghorne. i 
3.H.Austini Sullivant. — Leskea Sull. ic. musc.; Heterocladiu 
Kindb. 2 
Leaves entire, slightly recurved below, ovate at base, n 
spreading when dry; costa simple faint sometimes prolonged 
acumen. Stem-leaves short-acuminate; branch-leaves with lo 
ger, subulate acumen. Perichetial leaves with subfiliform poin 
inner erect. Capsule suboblong erect; lid obtuse; endoston 
unknown. Stem not pinnate. Monoecious. — Trees and sto! 
walls r. Amer. U. S.: Austin, com. Macoun. — The figur 
by Sullivant not are exactly agreeing with typical specimen 
B. Leaves uniform papillose denticulate not recurved, 
spreading when dry; upper cells short wide, alar not detine 
costa not reaching above middle. Capsules unknown. 
irregularly divided without paraphyllia. Dioecious. 
4.H.triste Cesati. — Leskea Ces.; Heterocladium Kindb.; A 
modon Sullivant. 
