— 248 — 
often emarginate; hairpoint longer, sometimes denticulate. .Pe- 
ristomial tube longer. Stem and pedicel very much shorter. | 
Dioecious. — Amer. r. Cun. Brit. Col: Macoun. : 
5.B.rotundo-emarginata C. M. et Kindb. l. c. : 
Differs from B. alpina: Leaves subspathulate shorter and 
broadly emarginate, more reflexed to above middle; hairpoint — 
hyaline dentieulate longer. Capsules unknown.  Dioecious. —  - 
Rocks r. Amer, Can. Brit. Col: Macoun. o 
bb. Peristome several times contorted, not much longer 
than tube. p 
6.B.levipila Bridel. — Tortula Brid.; Barbula Br. eur. 
Leaves oblong-lingulate us. obtuse, nearly flat or slightly 
reflexed at base; lower cells sometimes diversiform; costa brown — . 
or green not denticulate but sometimes minutely papillose; 
hairpoint hyaline us. smooth. Capsule long cylindric. Tufts 
us. olive-green. Sometimes monoecious. — Trees prine. in - 
warmer distr. Eur. not r. France, Switzerl., Italy! Sweden: 
S. Hardin. Amer. r. Can.: Roell. de 
7.B.brachyangia C. M. et Kindb. 1. c. 
Differs from the last: Leaves more reflexed; costa red rough; 
hairpoint pale red at least below, slightly denticulate above. 
Capsule short suboblong; peristome not seen. Tufts reddish - 
brown. Dioecious. — Amer. r. Can. Anticosti: Macoun. — w 
B. Leaves gen. long and distinctly carinate; hairpoint den- 
ticulate. Dioecious.or (B. Muelleri) synoecious. pe 
à. Leaves faintly carinate; basal cells somewhat short and 
wide nearly uniform, the outer often less pellucid and not 
much narrower. Synoecious or polygamous. 9 
8.B.Muelleri Bruch. — B. princeps C. M. | AB 
Leaves long sublinear-lingulate obtuse, reflexed to above 
middle, not or slightly curved when moistened; costa red nearly 
smooth; hairpoint hyaline. Capsule. large; teeth twice contor- 
ted. Tufts high, rusty red below. — On stone r. on trees, T. 
Eur. France: Philibert. Greece: Heldreich. Italy: Arcangeli 
Amer. Pacif distr. Can.: Macoun. U. S.: com. Cardot. |. — 
b. Leaves distinctly carinate; basal cells long uniform hya- 
line not porose. Dioecious. 10258044017 
9.B.norvegiea F. Weber. — Syntrichia F. Web. 1804; Bar- 
bula Lindb. B. aciphylla Br. eur. 1842. Td 
Leaves. long. sublinear-lingulate more or. less acuminate OF 
acute; costa faintly rough; hairpoint red nearly smooth. — On 
