8G4 cxLTi. cypeuace.t:. 



anthers linear -oblong. Nuts Jg- in. long, globosely obovoid, rounded 

 and shortly apiculate at the apex, trigonous, on a short thick stipes^, 

 yellow or pale-brown ; stvle longer than the nut ; stigmas 3, capillary, 

 ri. B. I. V. 6, p. 600 ; Grab. Cat. p. 231 ; Dalz. & Gibs. p. 282 ; Boeck. 

 in Linnsea, v. 35 (1868) p. 574; Clarke, in Journ. Linn. Soc. v. 21 

 (1884) p. 119; Trim. PI. Ceyl. v. 5, p. 26; Woodr. in Journ. Bomb. 

 Nat. V. 13 (1901) p. 430; Prain, Beng. PI. p. 1139; Watt, Diet. Econ. 

 Prod. Y. 2, p. 684.— Flowers : Oct.-Dec. 



Konkan: Ratnagiri, Wooclrow. Deccan : Lanoli, Woodrow. — Distrib. Througliont 

 India, common in rice-fields; Oeylon, Malaya, Indo-China, Tropical Africa and 

 Australia. 



20. Cyperus niveus, Retz. Ohs. fasc. 5 (1789) p. 12. Glabrous, 

 glaucescent ; rhizome woody, short, the rootlets wiry; stems 8-16 in. 

 long, nodose at the base, closely 1-seriate. Leaves much shorter than 

 the stem, narrowly linear, setaceo-acuminate, yV-^ in. broad, weak. 

 Spikelets 3-12 in one head, reaching f by i in., oblong-elliptic, com- 

 pressed, pale, sometimes almost white, 20-40-flo\vered ; rhacbilla not 

 winged ; bracts usually 2, the longest reaching 2^ in. long, finely 

 acuminate, not dilated at the base, leaf-like. Glumes i by jV ^^-i ovate- 

 lanceolate, compressed ; keel produced into a very short mucro ; sides 

 whitish or whitish-brown, multistriate, with narrow hyaline margins. 

 Stamens 3 ; filaments long, persistent ; anthers linear, muticous, exserted 

 from the glume. Nut -^tj in. long, obovoid, triquetrous, dark brown ; 

 style -Jg in. long ; stigmas 3, rather shorter than the style. Fl. B. I. 

 V. 6, p. 601 ; Boeck. in Linnsea, v. 35 (1868) p. 530 ; C. B. Clarke, in 

 Journ. Linn. Soc. v. 21, p. 108 ; Woodr. in Journ. Bomb. Nat. v. 13 

 (1901) p. 430 ; Prain, Beng. PI. p. 1139 ; AVatt, Diet. Econ. Prod. v. 2, 

 p. 686. — Flowers : Nov. 



Sind: Pinv'Ul; Hyderabad, Woodrotv. — Distiub. j\Ioro or less throughout India; 

 Afglianistan, China. 



21. Cyperus leucocephalus, lietz. Ohs. fasc. 5 (1789) p. 11. A 

 glabrous herb ; rhizome very short, woody, with long fibrous rootlets ; 

 stems csespitose, very slender, nodose at the base, each carrying one 

 head. Leaves shorter than the stem, narrow, -^ — ^ in. broad, many- 

 nerved. Heads dense, globose, white, \-^ in. in diam., containing 8-50 

 spikelets ; bracts 3 (rarely 4), the longest reaching 2| in. long, narrowly 

 linear, long-acuminate, many-nerved. Spikelets \-\ by 7^—5- in., 

 compressed, elliptic, 10-18-flowered. Glumes -J^ by -^^ in., oblong- 

 lanceolate, subobtuse, whitish or pale- brown, with hyaline margins. 

 Stamen 1 ; anthers oblong, muticous. Nut -^ in. long, oblong-ellipsoid, 

 trigonous, shortly apiculate, granulate, black ; style j^ in. long ; stigmas 

 3, as long as the style. Fl. B. I. v. 6, p. 602 ; Boeck. in Linnaea, v. 35 

 (1868) p. 590 ; C. B. Clarke, in Journ. Linn. Soc. v. 21 (1884) p. 107 ; 

 Woodr. in Journ. Bomb. Nat. v. 13 (1901) p. 430. 



Konkan: N. & S. Konkan, Law\ — Distrib. Tropics generally. 



22. Cyperus arenarius, Retz, Ohs. fasc. 4 (1786) p. 9. Whole 

 plant pale or glaucous-green ; rhizome elongate, creeping, striate, rigid, 

 dichotomously blanched, clothed with lanceolate chestnut-brown sheatiis; 

 rootlets thick, glabrous ; stems solitary, 4-12 in. long, distant, stout, 

 rigid, terete, attenuated at the base iuto the rhizome, clothed below 



