=a 
27.B.subereeta Drummond. — Tortula Drum.; Barbula Kindb.; 
Desmatodon obliquus Br. eur. i 
Leaves not reflexed in upper third, gen. ovate-oblong acu- 
minate acute; costa long-excurrent. Capsule subcylindric slightly 
inclined or erect; teeth nearly once or half-twisted pale red. 
Stem very short. — Rocks in alp. regions r. Eur. Norway! 
Amer. Can.: Macoun; Drummond 145. 
2. Camptopodie. 
28.B.Laureri Schultz. — Trichostomum Schz.; Barbula Kindb.; 
Tortula Lindb.; Desmatodon Br. et Sch; Tortula bryoides 
* Drummond. 
Leaves oval-oblong or oblong-lingulate sometimes acute, sub- 
pellucid, reflexed all around; costa short-excurrent. Capsule 
oblong; teeth half-twisted. — Crevices of rocks in alp. regions 
r. Eur. Norway! Amer. Can: Macoun; Drummond 135. 
IV. Pleurochete Lindberg. 
29.B.squarrosa Bridel. 
Leaves large ovate-lanceolate long-acuminate nearly subulate, 
squarrose when moist. Capsule subcylindric; pedicel long. Tufts 
eradiculose pale green or yellowish. Very r. fruiting. — Cal- 
careous rocks prine. in warmer districts r. Eur. Switzerl.! Nor- 
. way: Ryan. Greece: Heldreich. France: Husnot. Amer. »U. 
= S.» Lesq. et Jam. 
V. Tortella C. Mueller. | a 
A. Leaves rigid very brittle, the lower not crisped. Dioecious 
r. fruiting. 
30.B.fragilis Drummond. — Didymodon Drum.; Barbula 
Wilson. 
Leaves. long long-acuminate nearly subulate; costa long-ex- 
current, Capsule subcylindric somewhat large; teeth red much 
contorted; pedicel long often very thin. Tufts yellowish green 
often high. — Wet earth princ. in alps. Eur. Sweden, Norway, 
Switzerl,! Amer. Can.: Macoun; Waghorne; Drummond 142. 
31.B.nitida Lindberg. — Tortula Lindb.; Barbula Juratzka; 
Trichostomum Schimper. 1 
.  . Leaves sublinear short-acuminate acute shorter than in the 
. last; costa short-excurrent. Capsule oblong-cylindrie; teeth 
yellow: rudimentary not twisted. Tufts yellowish or blackish 
brown below, often not high. — Prine. on calcareous rocks, r. 
Eur. Switzerl.! Engl.: Rogers. Irel.: Holt. Italy: Bottini. Bel- 
gium: Gravet. Amer. Can.: Macoun. abr ‘ 
B. Leaves us. crisped and soft (in B. tortuosa sometimes 
