RHABDOWEISSIA (7). Caps. shortly oval, eight-striate, wide mouthed, teeth lanceolate or subulate, barred, without medial line; beak slender, inclined; calyptra cucullate; leaves channelled lax; stems perennial, cæspitose. 36. WEISSIA (6). Caps. oblong-ovate, smooth, teeth lanceolate or linear-lanceolate, free at base, without medial line, convex, sometimes perforate and bifid; leaves of close texture; stems as above. 33. ANACALYPTA (22). Caps. oval on a long straight pedicel; teeth united at base by a membrane, plane, lanceolate, entire or perforate, no medial line; leaves succulent with lax areolæ; stem annual or biennial. 57. ‡ ‡ Caps. globose, nearly horizontal. DISCELIUM (64). Almost stemless; caps. decurrent into the suddenly bent neck; teeth lanceolate, cleft half way from base upwards; leaves few minute, gemmiform. 133. CATASCOPIUM (63). Caps. smooth, shining, neck bent, and tapering into the seta, mouth somewhat oblique; teeth short truncate, irregular, barred, with a medial line; leaves numerous, nerved, of firm texture. 132. CONOSTOMUM (62). Caps. cernuous, obscurely furrowed when dry; teeth linear-lanceolate, barred, converging and united together into a cone; perennial. 132. * * * Teeth 16, deeply bifid, equidistant. ‡ Caps. erect, symmetrical. DESMATODON (23). Caps. oval or oblong, sometimes almost pendulous; teeth subulate, united at base by a membrane, bi-trifid; lid rostellate; leaves soft broad, papillose at back. 58. ‡ ‡ Caps. sub-erect, rather unequal. CYNODONTIUM (15). Caps. ovate-oblong, or obliquely sub-pyriform, smooth, teeth lanceolate, connivent, dilated at base, entire or cleft to base, sometimes barred, deep red; lid rostrate. 39. ARCTOA (14). Caps. oval or almost turbinate, striate, contracted below the wide mouth when dry; teeth lanceolate subulate, cleft, or perforate and entire, bars not prominent; lid large, obliquely rostrate. 39. ‡ ‡ ‡ Caps. cernuous or inclined, unequal. DICRANUM (16). Caps. mostly cernuous, smooth or striated, regular, gibbous or curved, with a tapering apophysis, or sometimes strumose, teeth equidistant, confluent at base, incurved, lanceolate, cleft half way into unequal portions, barred, occasionally perforate, with a medial line; lid rostrate oblique; leaves of close texture, nerved and more or less secund; areolation linear at the base. 40.