on the back of the nerve; strongly cirrhate and twisted when dry; basal cells large cylindraceo-vesicular, the rest small quadrate or sub-hexagonal, filled with chlorophyll. [Dr. Braithwaite, Jour. Bot., IX., 290.]
Base of an oak trunk in Sutton Park, Birmingham. J. Bagnall, 27th Aug., 1870.
7. RHABDOWEISSIA. Bruch. & S.
56. R. fugax. B. & S. St. 1/4-1/2in. tufted; l. linear-lanceolate, acute, toothed near apex, margins plane; caps. ovate, somewhat striated; teeth of per. subulate, fugacious; lid with an oblique beak longer than capsule.
Sub-alpine rocks, in crevices. VI. VII.
57. R. denticulata. B. & S. St. longer than last, loosely tufted; l. lingulate or linear-lanceolate, strongly toothed half-way from apex; caps. more distinctly striated when dry, teeth of per. lanceolate, persistent.
Alpine and sub-alpine rocks.
8. CAMPYLOSTELIUM. Bruch. & S.
58. C. saxicola. B. & S. Minute; l. elongate, linear-lanceolate, crowded entire, twisted, nerved nearly to summit; caps. elliptical drooping, on a geniculate pedicel, annulus double, calyptra 5-cleft. at base.
Sandstone rocks, rare. XI.
9. BRACHYODUS. Nees. & H.
59. B. trichodes. N. & H. Very minute; l. lanceolate-subulate, almost setaceous; erect, with an excurrent nerve
