Uneinia.| CYPERACEAE. 485 
conchoid, almost orbicular, apiculate, pale fawn-colored, with many darker 
lines, nerveless or 1-nerved ee near the apex. Stamens 3. Female spikelets 
l'/2“, obovoid-obtuse; glumes 4, only one fertile; style short, trifid, with 
a bulbous deciduous base. Achene subglobose, 1'/2“, thin rene 
of porcelain whiteness and gloss. Disk cup-shaped, corky, obso 
lobed, not fringed, adherent to glume and achene. — Steudel, fae a 
Glum. II, 168. — Beklr., in Linnaea, < craaiy oh II, 518. 
Hawaii! Hilo and Kilauea; Maui! 
14. Sere Pers. 
A single terminal androgynous spike, male above, female below. Glumes 
imbricate all round, 1-flowered. No hypogynous bristles or scales. Stamens 
3, the filaments and anthers short. Pistil accompanied on its outer side 
by a hooked awn (the rudimentary axis of the spikelet), both creer in 
a second inner glume the margins of which are connate, thus fi a 
bicarinate utricle. Style 3-, rarely 2-cleft, short. Achene opm or 
plano-convex, enclosed in ‘the utricle with the persistent awn. — Stem 
simple, triquetrous. Leaves grass-like. — The genus differs from the an- 
drogynous Carices only in the peek of the exserted and hooked axis 
in the female florets or spikelet 
About 25 species, sessed Rin biting x oegpe n s 
ee Ge a few only ending along t segetes into i, "Ame rica 
1. U. Lindleyana, Kunth, Enum. ee I, 526. — Stems frou a etlort creeping 
rhizome, ae ft. long, slender, ner aia smooth, foliose in the lower 
alf. Leaves exceeding the stem, sometimes much longer, 1!/2—2“ broad, 
flat, long-acuminate, scabrous on margins aia back. Spike simple, linear- 
oblong, 3—6‘, rather densely flowered, supported at the base by a filiform 
leaf of greater length, the narrow male portion only about 1/2‘ long, the 
female portion enlarging upward. Glumes of female portion Ie 
'ea—3", acute or obtuse, carinate-convex, thin, greenish stramin 
faintly several-nerved, glabrous; those of the male portion smaller. Oia 
stipitate, greenish, as long as the glume, thin, ovoid, plano-convex, drawn 
out into a long bidentate neck, smooth; the uncinate awn twice as long. 
Achene pale, ovate-oblong, plano-convex, with a longitudinal line on the 
back. Style trifid, the stigmatic branches exserted and reflexed. — Re- 
ferred by J. Hooker to U. australis ,. Pers., in the Flora of New Zealand, 
so by Boeckeler, in Linn. ; ; in this species, however, 
awn is shorter than the utricle and, besides, Persoon’s short description 
leaves in doubt which of the two New Zealand apes he se — him. 
mountains of Hawaii (Kilauea)! W. Maui! Lanai! Molok 
15. CAREX, L. 
Flowers unisexual, the male and female in distinct spikes or i 
parts of androgynous spikes. Glumes imbricate all round. Stamens 
of the southern 
n different 
in 
* 
