— 213 — 
above perichetial leaves; tufts very dense: — Eur. r. Finl.: 
Silén»: Lindberg. | 
_ B. Leaves short us. obtuse. Stem low. at 
a Leaves obtuse, tristichous princ. on sterile shoots. Stem 
and shoots somewhat elongate. Capsule piriform with straight 
pedicel; teeth obtuse. 
7.S.tristicha Bridel. — Weisia Brid.; Seligeria B. S. 
Leaves sublinear; costa distinctly excurrent. Perichetial 
leaves gradually acuminate; costa long-excurrent. — Dripping 
calcareous rocks r. Eur. Engl: Rogers; Cash. France: Boulay. 
Amer. Can.: Macoun. : 
8.8.tristichoides Kindb. revue bryol. 1896. 
Leaves sublinear, broader than in the last; costa not distinctly 
excurrent. Perichetial leaves abruptly acuminate; costa per- 
current or short-excurrent. — Eur. r. Norway in northern di- 
strict: Schlegel and Arnell; E. Nyman. 
--b: : Leaves plurifarious. Stem and shoots very short. 
9.8.calearea Dickson. — Bryum Dicks; Seligeria B. S: 
Leaves subovate abruptly attenuate; costa excurrent. Capsule 
piriform erect; teeth obtuse; pedicel straight. — Calcareous or 
schistaceous rocks r. Eur. Switzerl.! France: Husnot m. gall. 
Amer, Can.: Drummond; Macoun. 
*S.erassinervis Lindberg. 
* »Capsule inclined; teeth acute; pedicel slightly curved at 
| apex. — Eur. r. Sweden»: Lindberg. 
10.S.diversifolia Lindberg. — S. compacta Philibert rev. bryol. 
1897 ? 
Leaves (also the perichetial) sublinear or narrowly ovate-oblong, 
gradually attenuate obtuse; costa not excurrent, Capsule erect 
narrowly piriform; teeth subobtuse; pedicel straight. — Calea- 
. Teous rocks r. Eur, Finl.: Brotherus. 
. *f.obliquula Lindberg. 
. . Capsule broader; teeth acute; pedicel slightly curved when 
dry: — Alp. rocks r. Eur. Norway in Dovrefjeld: Kaurin. 
11.S.campylopoda Kindb. cat. Canad. m. 
Leaves as in the last but the upper perichetial acute or 
Subacute. Capsule narrowly piriform finally sulcate; pedicel 
. Strongly arcuate when moist. — Calcareous rocks r. Hur. A. 
. Blytt and H. W. Arnell. Amer. Can.: Macoun; Waghorne. | 
99. Brachydontium Bruch. y 
. LB.triehodes Weber fil. — Gymnostomum W. f£; Brachydon- 
tium Bruch. x : 
