— 254 — 
brittle); costa short-excurrent. Dioecious or (B. cespitosa) mon-  . 
oecious. "m 
."&« Lower leaves very small, the upper suddenly much lar- 
ger. Peristome not or slightly twisted. Tufts low yellowish 
green. B. 
32.B.flavovirens Bruch. — Trichostomum Bruch; Barbula Kindb.; 
Tortula Lindb. | 
Leaves shorter than in B. tortuosa; the upper from broader 
base sublinear short-acuminate gen. obtuse; costa subpercurrent. 
Capsule suboblong or subcylindric; teeth dark red not twisted; 
pedicel red-yellow. — Calcareous rocks r. Eur. prine. in Me- 
diterr. distr. France: Schimper. Italy: Arcangeli; Bottini. Engl:  — 
Holt. Amer. »U. S.»: Lesq. et Jam. 3 
* B.viridiflava Notaris. — Trichostomum Not.; Barbula Kindb. — . 
Leaves shorter and not crisped; costa narrower and longer. 
excurrent. Capsule shorter; teeth orange. =—— Eur. r. Italy:  — 
Forsyth, com. Levier. a 
&3.B.inflexa Bruch. — Trichostomum Bruch; Barbula Kindb.; —— 
Tortula Lindb. . 75 
Differs from the last: Upper leaves incurved at apex; costa 
excurrent to an hyaline point. Capsule suboblong; teeth red 
slightly twisted; pedicel yellow above, — Calcareous rocks T. 
Eur. Italy: Venturi. 
' b. Leaves gradually larger upwards. Peristome us. con-  - 
torted. ' . | 
34.B.tortuosa L. — Bryum L.; Barbula Weber et Mohr. 
Leaves. gen. long longly acuminate and nearly subulate, 
r. shorter and brittle; costa very short-excurrent. Capsule  - 
oblong-eylindrie or subcylindric; teeth red us. several times —— 
contorted; pedicel yellow above. Tufts us. high and yellowish — 
green. — Rocks prine. calcareous. Eur. common. Sweden, 
Norway, Switzerl| Amer. not r. Can.: Macoun: E 
. »Trichostomum Bambergeri Schimper. — Leaves brittle sub- — 
linear or the upper long-acuminate subulate, sometimes broader — 
acuminate with some teeth and large hyaline cells at apex. —— 
Capsule oblong-cylindric; teeth red not twisted. Stone-walls r. 
Eur. Austria: Bamberger and Breidler»: Limpricht. — A doubt- 
ful species, »Didymodon mutabilis var.»: Venturi et Bottini. - 
ae Hedwig fil. — Tortula H. fil; Barbula Schws- - 
grichen. | ! o 
Leaves shorter than in B. tortuosa, from broader base sub- a 
linear gen. obtusate or sometimes cucullate at apex. Capsule 
B ONE UU nie 
