— 108 — 
à. Leaves gen. entire and glossy. Annulus of capsu 
narrow.  Dioecious. 
3.B.albieans Necker. — Hypnum Neck.; Brachythecium E 
eur. d 
Leaves (at least on branches) with long subulate acumen, 
sometimes small; alar cells well-defined on a narrow-rectang ul 
space, the others linear-lanceolate; costa often reaching to ac 
men. Stem-leaves us. subovate or with ovate base; branch- 
leaves ovate-oblong or ovate-lanceolate. Capsule small subov 
or faintly curved; pedicel not long. Tufts us. pale or whiti 
green. — Mostly on dry sand. Eur. not uncommon. Swedei 
M. Huss, fruiting. Amer. r. Can.: Macoun. Alaska: Palmer 
S.: Roell, com. Cardot. 
4.B.glareosum Bruch; Br. eur. — B. tauriscorum Molendo. 
Leaves large with subulate acumen and long filiform often 
twisted point; alar cells well-defined, also the lowest basal short, 
the others linear-lanceolate; costa gen. vanishing near middl 
Stem-leaves abruptly narrowed, broadly ovate-oblong. Brand 
leaves ovate-lanceolate with long subulate faintly dentieula 
acumen and shorter point. Capsule large arcuate; pedicel u 
short. Tufts us. pale green or yellowish. Stem eradieuk 
sometimes with paraphyllia. — Dry gravelly or calcareous places 
and stone-walls. Eur. not common. Sweden, Norway, Swit 
Amer. r. Can.: Macoun; Drummond n. 174. 
5.B.turgidum C. Hartman. 
Leaves large entire ovate-lanceolate with subulate not 
acumen; alar cells few and small, the others sublinear; costa 
vanishing near middle or somewhat longer. Capsula arcuati 
pedicel not long. Tufts loose eradiculose yellow-green or golden 
glossy. Stem robust turgid often long and simple. — Swat 
in alps r. Eur. Norway (fruit); C. Hartman. Spetsbergen: | 
Gyllencreutz. Amer. Alaska: J. M. Macoun. Greenl.: Berggren 
Can.: Macoun. 
b. Leaves faintly denticulate above and entire below, not 
glossy. Capsule not annulate. Monoecious. | 
6.B.digastrum C. M. et Kindb, cat. Canad. m. 3 
Leaves large recurved to the short subulate acumen; alar 
coun; Moser. 
