328 OYPERACES. | CYPERUS. 
Haldwani (Parker). Distriz: Bengal, Assam and all moist tropical 
regions. 
7. C. compressus, L. Sp. Pl. 68; F. B. I. vi, 605 ; Prain, Beng. 
Pl. 1143 ; Cooke Fl. Bomb. ui, 866; Collett Fl. Siml. 5565. 
An erect glabrous caespitose herb up to 14 ins. high. Roots tufted 
numerous fine. The stem bases are covered with red-purple usually 
entire and not fibrous leaf-sheaths. Leaf-blades often as long as 
the stems, narrowly linear ;5 in. wide, gradually tapering in the 
upper part to a fine acuminate apex. Inflorescence umbellate, some 
of the rays, usually 3 or 4, developed up to 34 ins. long, occasionally 
all the spikelets grouped as a sessile umbel; bracts leaf-like, unequal 
3 or 4 longer than or as long as the primary rays of the umbel. Spike- 
lets strongly compressed laterally, 4 to 7 in each ultimate condensed 
umbellate spike, 3-3 in. long, 34 in. wide, grey-green streaked with 
crimson, the rhachis very much flattened and with hyaline wings. 
The 2 or 3 lowest glumes small hyaline empty, the flowering glumes - 
broadly ovate when spread out, ;3, in. long, = in. broad at widest 
part, strongly keeled in upper part the keel running out into a stiff 
straight mucro, the wings with several obscure nerves. Stamens 3. 
Nut broadly triquetrous, obovoid, with 3 prominent angles and 3 
concave sides, dark brown 2; in. long, style with branches <3; in. 
long, divided about halfway down. \ 
Moradabad (Thomson); Dehra Dun (Duthie); Cawnpore (Duthie) ; 
Saharanpur (Royle); Bundelkhand (Duthie). Duisrrre.: Through- 
out India and most warm countries. 
Note.—According to Clarke, the rachilla is not winged but in fresh 
specimens I find the glumes continuing down the rachilla as distinct 
and rather broad wings. This plant is a common rains weed in Dehra 
Dun. 
8. C. aristatus, Rottb. Descr. et Ic. 23, t. 6, fig. 1; F. B. I. vi, 
606 ; Prain, Beng. Pl. 1143 ; Cooke Fl. Bomb. ii, 866; Collett Fl. 
Siml. 556. 
A small annual herb up to 8 ins. high. Numerous tufted fibrous roots. 
The lower parts of the flowering stems clothed with generally red 
glabrous not fibrous sheaths. Stems several to numerous, erect 
~ glabrous with fine longitudinal striations. Leaves all arising near 
the bases of the stems; sheaths with transversely truncate mouths ; 
blades linear, tapering towards an acute apex, up to 2 ins. in length, 
smooth. Inflorescence primarily umbellate with usually one sessile 
