— 363 — 
67.B.ventricosum Dickson. — B. pseudotriquetrum Schweegr. 
Leaves as in B. bimum. Capsule brown sometimes slightly 
oblique; neck often long; teeth yellow. Dioecious. Very variable. 
— Wet places common also in alps. Eur. Sweden etc.! Amer, 
Can.: Macoun. 
* B.bimoideum Notaris. — »Leaves nearly imbricate suberect; 
costa longer-excurrent. Lid of capsule long-apiculate. — Eur. 
r. Switzerl.»: Limpricht. 
* B.hyalodontium C. M. et Kindb. 1. c. 
Capsule pale brown not oblique; teeth pale hyaline. — Wet 
rocks r. Amer. Can. Brit. Col: Macoun. 
68.B.Reyeri Breidler. ; 
Differs from B. ventricosum: »Leaves longer finally reddish, 
narrowly limbate and nearly entire. Capsules unknown. — 
Dripping alp. rocks r. Hur. Austria: Breidler»: Limpricht. 
C. Leaves not decurrent, broadly limbate and recurved gen. 
entire; costa excurrent. 
a. Capsule strangulate with wide mouth. Tufts dense. 
69.B.pallescens Schleicher. 
Leaves gen. ovate-lanceolate, twisted when dry, Capsule pale 
brown or yellowish us. subclavate and not pendent when young; 
teeth pale. "Tufts us. 2—3 c. m. high, often green. Often 
monoecious. — Earth and rocks also in alps, princ. the nor- 
thern. Eur. not uncommon. Sweden, Norway, Switzerl.! Amer. 
Greenl: Berggren. Can.: Macoun. 
* B.contextum Hoppe et Hornschuch. 
Leaves short-acuminate smaller. Capsule thicker and more — 
distinctly strangulate; pedicel often only 1 c. m. long. Tufts 
brown-green often much higher. — Rocks princ. in alps. Éur. 
Norway! 
70.B.cirratum Hoppe et Hornschuch. 
Leaves gen. ovate or ovate-oblong, not or slightly curled. 
Capsule brown somewhat thick and pendent; teeth pale. Tufts 
green us. about 1 c. m. high and less compact than in the 
last. Spores in some alpine forms somewhat large. Us. synoe- 
cious. — On earth princ. on old roads in alps. ur. not r. 
Norway, Switzerl.! Amer. r. Can.: Macoun. 
* B.sysphinetum Limpricht. 
Leaves denticulate near apex; costa short-excurrent. Capsule 
smaller thicker and more constricted with shorter neck. Some- 
times monoecious. — In alps r. Eur. Norway!; Kaurin. 
^b. Capsule small-mouthed not constricted. 
