404 
Proceedings of the Royal Irish Academy, 
Stems lax and often spreading ; leaves ovate 
acute, nerve excurrent or cuspidate ; caj)- 
sule shortly-pyriforni, pendulous, con- 
tracted below the mouth when dry, . 13. B. Duvalii. 
aaa. Leaves ovate, nerve excurrent. 
Inflorescence monoieous. 
Stems short, branched; leaves ovate-lan- 
ceolate, margin partly reflexed ; capsule 
clavate, mouth small ; oblique, . .14. B. uliginosum. 
Stems csespitose, branched and radiculose; 
leaves ovate-lanceolate, nerved scarcely 
to the apex; capsule oblong-pyriform, 
constricted below the mouth, . .15. B. pallescens. 
Inflorescence synoicous. 
Inner peristome imperfect. 
Stems tufted, radiculose ; leaves concave, 
ovate-acuminate ; capsule pyriform ; 
mouth small; lid conical, . . .16. B. pendulum. 
Stems short, radiculose ; leaves ovate-lanceo- 
late, nerve excurrent ; capsule ventriose- 
pyriform; lid with a sharp apiculus, . 17. B. inclinatum. 
Inner peristome perfect. 
Stems csespitose, branched, radiculose ; leaves 
spreading, ovate -lanceolate ; capsule 
clavate-pyriform, subpendulous ; inner 
peristome with appendiculate cilia, . 18. B. intermedium. 
Stems elongated; leaves oblong- acuminate, 
margins recurved, nerve excurrent ; 
capsule pendulous; lid large, mammil- 
late, . , . . . . . 19. B. bimum. 
Stems loosely csespitose ; leaves ovate-lanceo- 
late, entire, twisted when dry, their 
margin reflexed ; capsule obconical sub- 
pendulous; lid apiculate, . . .20. B. TOEQUESCENS. 
Inflorescence dioicous. 
Stems densely csDspitose; leaves ovate, twisted 
when dry, nerve excurrent into a hair- 
like point ; capsule oblong- pendulous, . 21. B. capillaee. 
