of the Tribe Trigonanthee. 37 
Stems 0.06™™ in diameter; leaves 0.12™"x0.11™™; leaf-cells at mar- 
gin 12yx10p, at middle and base 17; innermost bracts 0.32"™"x0.24™™; 
innermost bracteole 0.2™"x0.1™™"; perianth 0.35™™"x0,2™. 
Oahu : Nuuanu (Cooke). 
This species is the smallest Cephalozia reported, so far, from the 
Hawaiian Islands. It was found scattered among other hepatica. 
It is rather close to C. elachista Jack, of Europe. The leaves of the 
Hawaiian species are less deeply bifid and the leaf-cells are smaller 
with thicker cell-walls. The Hawaiian species is probably dioicous 
as no male spikes were found, while C. elachista is monoicous and 
its perichetial bracts are blunter and less denticulate. 
Cephalozia Kilohanensis, sp. nov. 
PrarTe XIV. 
Autoicous : plants minute, cespitose, reddish brown : stems pros- 
trate, light brown, sparingly branched from the postical surface, 
about 5 cells in diameter, internal and cortical cells similar, the 
latter in about 12 longitudinal rows ; rhizoids numerous, scattered 
on the lower surface of the stem: leaves near the apex of the stem 
imbricated, almost transversely inserted, concave, assurgent, sub- 
quadrate, broadly ovate, bifid (about one-half), lobes entire, spread- 
ing, 6 to 10 cells long, 4 to 7 cells broad, triangular-ovate, apex acute 
to obtuse; sinus usually obtuse: leaf-cells with much thickened walls, 
trigones lacking or minute: underleaves wanting: @ inflorescence 
borne on a short postical branch; bracts in 3 to 6 pairs; inner- 
most bracts similar to the leaves but from 2 to 3 times as large, 
broadly ovate, bifid (one-third to one-half), lobes unequal, the posti- 
eal the larger, acute or obtuse, sinus separating lobes acute or obtuse, 
margin entire or nearly so; innermost bracteole narrowly ovate, con- 
nate on one or both sides, apex acute, obtuse or bifid, when bifid the 
lobes are unequal, triangular, acute; other bracts similar but smaller 
than innermost bracts; other bracteoles narrowly ovate, acute or 
obtuse, slightly connate on one or both sides: perianth cylindrical, 
terete below, obtusely keeled near the apex, 1 cell thick, upper 
third hyaline, mouth contracted, irregularly denticulate: % spike 
usually occupying a short postical branch; 4 bracts in 5 to 10 
pairs, similar to leaves, closely imbricated, concave, unequally bifid, 
lobes ovate, obtuse, entire; ¢ bracteoles rudimentary, minute, ligu- 
late; cells of bracteole small subquadrate; antheridia borne singly: 
spores minute, round, purplish, verruculose ; elaters blunt ; bispiral. 
