— 266 — 
lus very narrow not revoluble. Plants short simple loosely 
cespitose. — Amer. r. U. S8.»: Lesq. et Jam. 9x5 
88.B.spadicea Mitten. 
Leaves channelled with short ovate base and longer acumen, 
reflexed below middle; lowest basal cells short-rectangular. Cap- 
sule. cylindric; teeth short nearly straight. Tufts brown-green — 
or fuscous not low. — On stone r. Eur. Norway, Switzerl.! 
Engl: Whitehead. Germany: Schliephacke. Amer. Can.: Ma- 
coun. 
* B.Zetterstedtii Schimper. — Didymodon Sch.; Barbula Kindb.; 
B. vaginata Lindb. 
Leaves larger very acute, the perichetial half-sheathing. Cap- 
sules not seen. Resembles Didymodon rigidulus. — Rocks r. 
Eur. Sweden!; J. E. Zetterstedt; Lindberg. 
d. Vinealiformes. "mi 
A. Leaves reflexed all around; cells very pellucid. Plants 
small. 
89.B.virescens Lesquereux. Bis 
Leaves small broadly ovate-lanceolate nearly smooth; cells — 
gen. short well-distinct, the upper round-oval not confluent. 
Capsule small cylindric; teeth contorted. Tufts green dense - 
about 1 c. m. high. — Rocks r. Amer. U. S. Calif. near Oak- 
land: Bolender, com. C. Mueller. B 
B. Leaves partly flat at borders, Plants. us. high and — 
robust. ; gig 
a. Upper leaf-cells opake confluent very papillose. 
aa. Leaf-base long ovate-lanceolate; costa not excurrent. = 
90.B.cylindriea Taylor. — Zygotrichia Tayl; Barbula Sehimp. — 
Leaves large entire with long narrow acumen, crisped; 2 
cells short-rectangular. Perichetial leaves gradually acuminate; 
costa subexcurrent. Capsule reddish cylindric; teeth once coh 
torted. Tufts rusty red us. high. Very r. fruiting in Europe. - 
— Rocks and stonewalls. Eur. not r. in warmer distr. Swe- a 
den, Switzerl.! Belgium: Gravet. Amer, Can. Pacif. dist.: Ma- 
coun. U. S8: Roel. | ; M. 
91.B.sinuosa Wilson. — Dicranella Wils.; Barbula Braithwaite. — 
Differs from the last: Leaves lurid green less reflexed with p. 
broader base and longer sinuolate-denticulate acumen, often 
brittle; lower basal cells rectangular subhyaline, Capsules’ un- - 
known. Habit of Didymodon tenwirostris. — Rocks x. Bur 
Austria: Venturi. Engl: Boswell. France: Berthoumieu. Bel- 
gium: Gravet: Amer. U. $. Wash; Roel... -) 2000007 
