834 CYPERACEA. [ CYPERUS. 
back. Stamens 3. Nut 3, in. long, acutely trigonous, black, apicu- 
late, style with its branches 7, in. long, divided more than half way 
down. 
Dehra Dun (Parker) fairly common. Haldwani (Parker). Dr1stTRIB.: 
Old World tropics. 
17. C. procerus, Rottb. Desc. et Icon. (1773) p. 29, t. 5; F. B. I. 
wv, 610; Prain, Beng. Pl. 1143. 
Perennial, stolons elongate, clothed with long acuminate scales. Stems 
2-3 ft. long, acutely triquetrous, clothed at the base with the mem- 
branous somewhat fibrous sheaths. Leaves often exceeding the 
stem, thick coriaceous or somewhat spongy }-3 in. wide. Inflores- 
cence a simple or once compound umbel of spikes, primary rays 
1-4 in. long, primary bracts about 3 very unequal, the longest up to 
15 in. leaf-like. Spikelets 3-1 in. long, } in. broad, not crowded, 
straw-colored or reddish, spreading at right angles to the rachis, 
rachilla flattened, not winged. Glumes broadly elliptic in outline 
when spread flat, boat-shaped, sides and tip with a narrow hyaline 
margin, 2-3 nerved on either side of the closely 3-nerved keel, y- 
in. long. Stamens 3. Nut obovoid, trigonous, }; in. long, yellowish- 
brown, style with its branches } in. long, divided more than half 
way down. 
Dehra Dun (Parker). The only specimen from our area has the rachis 
of the spikes scabrous-pilose (var. lasiorrhachis, C. B. Clarke). 
Distrie,: Eastwards to Indo-China and south to Java. 
18. C. tegetum, Roxb. Fl. Ind. i, 208; F. B. I. vi, 613 ; Prain 
Beng. Pl. 1144; Collett Fl. Siml. 557 ; Cooke Fl. Bomb. ii, 870, 
An erect glabrous plant. Rhizome short horizontal, covered with 
dark-brown cataphyllary sheaths which may later become some- 
what fibrous; the main adventitious roots wiry and bearing numer- 
ous much branched lateral roots. Stem-bases covered with pale- 
brown, membranous, often rather long, not fibrous sheaths with 
very oblique mouths; stems solitary leafless except at the base, 
- up to 5 ft. high but generally shorter, with fine longitudinal striations. 
Leaves with the blades generally much reduced giving a 
rush-like appearance to the plant, when present the blades vary 
considerably in length and in breadth according to the luxuriance 
of the plant, margins serrulated, midrib conspicuous glabrous. Rays 
of the primary umbel 1 to 6 ins. long, ending in spikes or panicles 
of spikelets, the secondary rays often with a tubular cladoprophyll 
