of the Tribe Trigonanthee. 31 
parous branches small, ovate from a broad base, acute or obtuse: 
leaf-cells at apex and along margin oblong-quadrate, thin-walled, per- 
pendicular to edge, cell-cavities with slightly rounded corners, tri- 
gones minute, cell-cavities sometimes slightly stellate with small 
trigones, cells in middle and at base thin-walled with cavities irreg- 
ular or rounded and trigones minute or small: underleaves minute, 
rudimentary, consisting of a few cells; on gemmiparous branches 
similar to leaves; at the base of branches well developed, broadly 
ovate, obtuse or bifid ; cells of the underleaves thin-walled with 
minute trigones: gemmez oval, composed of 1 or 2 cells: Q inflor- 
escence borne on a short branch; @ bracts in 3 or 4 rows; innermost 
bracts about the length of the leaves but narrower, ovate from a 
broad base, upper half irregularly denticulate, apex irregularly bifid 
about one-third, lobes ovate, apiculate or subulate, sometimes cleft, 
irregularly denticulate, terminal cell verruculose; innermost bracteole 
similar to bracts, but less deeply bifid: perianth fusiform, usually 
curved, terete below, irregularly keeled above, 3 or 4 cells thick at 
base, 2 cells thick to near the middle, 1 cell thick above, mouth 
irregularly lobed, lobes dentate-laciniate, laciniz sometimes denticu- 
late, 2 or 3 cells broad at base and ending in a row of 1 to 4 slightly 
verruculose cells: elaters bispiral ; spores small, round, brownish 
yellow. . 
Stems 0.15™™ to 0.18™™ in diameter; leaves 0.9™"x0.85™"; leaf-cells 
at dorsal margin 17x22, near apex 21ux25p, at middle of base 39ux 
28p ; rudimentary underleaves 0.05""x0.07™™ ; cells of underleaves 
at base of branches 30ux25y; perianth 2.5™™x0.6™™ to 3.0™™x0.8™™; 
innermost bracts 1.1™x0.4"" ; innermost bracteole 0.9™™x0.35™™; 
elaters about 2504x104; spores 9p. 
Hawaiian Islands (Andersson). Oahu: Nuuanu (Cooke). 
Odontoschisma Sandvicense differs from O. Sphagni in having 
gemme and in its larger leaves, which are decurrent antically; the 
cells at the base of the leaves are also larger. From O. subjulacewm 
it differs in its larger size and green color ; the leaves are larger, 
more quadrate, narrower in proportion to their breadth, more spread- 
ing, and less concave ; its cell-cavities are more regular in outline, 
never as distinctly stellate, and its trigones are much smaller. 
Cephalozia Dumort., 1835. 
Plants usually small, sometimes minute, rarely large or robust, 
branches usually postical, rarely lateral: leaves succubous, rarely 
transversely inserted, more or less concave, often bilobed or subcom- 
