of the Tribe Trigonanthee. 29 
Odontoschisma subjulaceum Aust. 
Odontoschisma subjulaceum Aust., Bull. Torr. Bot. Club, vi, 303, 1879. 
Jungermannia caudifera Tayl. Ms., ex parte; Aust., 1. c. (as synonym). 
PLATE X ; FIGURES 10-26. 
Dioicous: plants small, green, or reddish near the apex, growing 
in dense or scattered tufts on fallen logs or on the ground: stems 
simple, rarely branching, short, apex ascending, usually attenuated 
and gemmiparous; flagella borne near the base of stems, radiculose ; 
rhizoids scattered, at the base of stems or on the flagella: leaves 
strongly concave, apex arching over the stem, closely imbricated, 
decreasing in size on the attenuated portions of stems and branches, 
broadly ovate, apex entire, rounded, ventral base slightly rounded, 
dorsal base not decurrent ; leaves in upper part of gemmiparous 
branches small, spreading, narrowly ovate from a broad base, margin 
irregularly denticulate : leaf-cells thin-walled, with large sometimes 
confluent trigones and stellate cavities : underleaves rudimentary, 
minute, distant, usually bifid, near the base of branches much larger, 
unsymmetrically ovate or ligulate, obtuse or bidentulate; on gemmi- 
parous branches similar to the leaves: cells of underleaves thin-walled, 
with or without very small trigones; cells of underleaves near the base 
of branches similar to those of leaves : gemme oval, composed of 1 or 
2 cells: 9 bracts in 2 or 3 pairs; innermost bracts ovate from a broad 
base, bifid from one-fourth to two-thirds, lobes triangular-subulate, 
acute-acuminate, often denticulate, innermost bracteole similar to 
bracts, but with shorter and more rounded lobes ; cells of bracts 
and bracteole elongated, thin-walled, trigones small, upper marginal 
cells verruculose: ¢ bracts in 4 to 6 pairs, orbicular-ovate, strongly 
concave, unequally bifid one-third to one-fifth, lobes obtuse, verru- 
culose at the apex. 
Stems 0.15™" in diameter; leaves 0.6™"x0.58™™ to 0.4™™x0,38™™; 
leaf-cells at apex 24yx23y, at middle of base 32x35, trigones 10p, 
cells at margin 21ux25u; innermost bracts 0.75™™x0.4™™; ¢ bracts 
0.2"™x0.17™™, rudimentary underleaves 0.06™™x0.05™™, cells 24. 
West Maui (Baldwin). Hawaiian Islands (Bailey). Oahu: Nuuanu 
(Cooke). Kauai: Waimea (Heller); Kilohana, Lihue, Hanalei 
(Cooke). 
Odontoschisma subjulaceum differs from O. Sphagni (Dicks.) 
Dumort., of. Europe and North America, in being a much smaller 
plant and in producing numerous gemme ; its leaves also are not 
decurrent ventrally and are much more convex with stellate cell- 
cavities and larger trigones. 
