Cyperus. | CYPERACEAE. 469 
5—7 (the upper empty one obtuse, costate or ecostate, and the terminal 
one tabescent), rather thin and pale, lanceolate, somewhat acute or slightly 
mucronate below the apex, 2—2'/2“ long, faintly 8-nerved, besides the stiff 
and smooth reddish keel. Stamens 3, slightly exserted, style 3-fid, long- 
exserted, both anthers and stigmas reddish. Foveoles of the slender 
rhachis shallew, with narrow hyaline margins. Achene elongate, trigonal, 
ail reddish - brown, half the length of the glume. — Kunth, 1. ec, 
— Steudel, 1. ¢. ~ 65. — Mann, Enum. no. 509. 
Va. ine — The reddish sien of the spikes is more owing to th 
rs etlareas anthers and. Haale than to the glumes, whi ch are of a paler yellowish brown. 
14. C. Mauiensis, sp. n. — Stem acutely ‘trigonal, 1—11/2 ft. high. Leaves 
stiff, not much exceeding the stem, 4“ broad below, scabrous on edges 
and keel near the apex. Umbel compound but short and compact, 2!/2—3' 
high, with 12 or more crowded, shortly ochreate rays, all or most of them 
again umbellate, viz., bearing one or two pairs of short approximate 
branches which do ne exceed 1‘ in length, besides the longer termin 
one, all branches densely spicate in their entire length, forming obtuse 
Gglinders of 4“ in thickness, the spikelets subascending in the upper 
portion, Involucral leaves many, most of them much exceeding the 
umbel; leaves of involucel as long as their branches or shorter. Spikelets 
with a filiform bractlet of 1!/2—2‘’, ovato-lanceolate, but slightly compressed, 
rather turgid, 2'/2—3 long, of a dirty straw or rust color, 2—3- flowered. 
es 4—5, mpty one short roundish and ecostate, the 
terminal one tabescent, the fertile ones chartaceous, smooth, obovate, 
Subcompressed and : , 2” long, shortly mucronate below 
Foveoles of rhachis shallow, broad, '/2—"/s the length of their glumes, with 
— rae Stamens 3. Style 3-fid. Achene elongate, trigonal. 
Mau 
B var. — tke simple, less compact and shorter, either all its rays 
undivided or only the one or two longest, with 2 very short branchlets 
below the long terminal spike, which is about 1‘ long and only 2” thick. 
cetera 2”. Glumes 3—4, only 1 or 2 fertile. 
The. ies would seem to come nearest to Mariscus flavus, H. B. & K., from 8. 
America, which also extends to some Picante island groups. 
15. C. (Mariscus) phleoides, Nees. — Steudel, 1. c. p. 62. — Stem 
tfp—1fa ft. long, rather stout and swollen at the base, acutely triangular. 
Leaves coriaceous, exceeding the stem, 3—4“ broad below, sharply serrulate 
on edges and keel toward the apex. Umbel simple, short and compact, 
with 7—11 unequal rays, the longest 1—1'/2‘ and naked in the lower 
rie rarely with a pair of very short branchlets, the shorter ones spicate 
the base, the densely crowded spikelets forming ovoid or short obtuse 
