of the Tribe Trigonanthee. ifn! 
long, otherwise entire or nearly so; bracteoles similar to ordinary 
underleaves but smaller. 
Stems 3 to 8°™ long; 0.25™™ in diameter; leaves 0.7™™ x 0.4™™ ; 
underleaves 0.57" x 0.3"; leaf-cells at edge of leaf 14 in dia- 
meter, in middle 18, and at the base 284x234; innermost bracts 
1.7™™x1.0™" (on robust specimens with perianths); perianth 4.0™™x 
0.85™™: bracts 0.457"x0.25"™": bracteoles 0.35™™x0.15™™. 
Mixed with other hepatics. West Maui (Baldwin). Oahu: 
Konahuanui (Cooke). Type-specimen in Herb. W. H. Pearson. 
Bazzania S. F. Gray, 1821. 
Plants usually robust: stems depressed or pendulous, falsely 
dichotomous, compressed slightly from the front; cortical and interior 
cells of the stem similar, somewhat smaller than the leaf-cells ; leafy 
branches lateral, very rarely postical ; postical branches usually short 
and floriferous or elongated, microphyllous and _ radicelliferous : 
leaves incubous, alternate or very rarely opposite, more or less imbri- 
cated at the base, decurved, sometimes (in dry specimens principally) 
secund, always obliquely inserted, often falcate, twice as long as 
broad, subcordate at base or ligulate, apex usually truncate, triden- 
tate, in rare cases 4-dentate or entire, sometimes equally bidentate or 
unequally bilobed, margin entire in most species, in a few dentate 
at the postical base: cells small, subequilateral, thickened at the 
corners, near the postical margin with 6 to 12 rows of elongated 
cells; subtending leaf antical, ovate-subulate, entire: under- 
leaves always present, half as long as the leaves or less, usually 
wider than the stem, mostly subrotund, or quadrate, rarely elongate; 
apex truncate, usually 4-crenate to incised, rarely subentire, margin 
subentire or dentate, base cordate: dioicous: ¢ and @ flowers clad- 
ogenous on postical branches ; ¢ bracts in 3 to 5 pairs, often shorter 
than leaves, concave, ovate to orbicular, rarely ovate-lanceolate, apex 
at least bilobed, laciniate or ciliate and more or less denticulate ; 
archegonia 10 to 16; perianth rarrowly ovoid, somewhat fleshy at 
the base, terete below, 3 keeled above, mouth subciliate; calyptra half 
the length of perianth, pyriform to cylindrical-oblong, 3 cells thick 
at base, 2 cells thick above: capsule half as long as calyptra, 
subeylindrical, the wall about 5 cells thick, outer layers with parietal 
columns, innermost having semiannular thickenings ; elaters thin, 
subobtuse ; spores minute: andreecium shortly incurved ; bracts in 
5 to 10 rows, ovate, concave or subcomplicate, apex bifid or 
bidentate, rarely entire : antheridia usually in pairs, rarely solitary. 
