592 OLXXII, CYPERACEE. (C. B. Clarke.) [ Pyereus. 
cens, Thw. Enum, 342; Aitch. Cat. Pl. Punjab 155. C. polystachyus, 
Strachey Cat. Pl. Kumaon, 74; Duthie in .E. T. Atkinson Gaz. x. 620.— 
Cyperus, Wall. Cat. 3318. 
N. INDIA; alt. 0-6000 feet, from KAsumir to CHOTA NAGPORE and ASSA.— 
DISTRIB. Temp. and trop. old world. ] 
Glabrous. Stems tufted, 4-24 in. Leaves 4-12 by A in., weak. Umbel 
rays up to 23 in., usually very short; bracts 4-8 in. Spikes subglobose. Spikelets 
5-50, $ by i in., 40-fld. Glumes ovate, obtuse. Stamens 2; anthers small, muti- 
cous. Nut 4 length of glume.—The Himal. plant is identical with the European ; 
its spikelets are rather broad, ferruginous-green, and the glumes are (in fruit) rather 
loose, thin. In the Khasia Hills the glumes are often browner, chestnut, or very 
black, rigid, tightly imbricated. 
Var. B. nilagiricus, C. B. Clarke in Journ. Linn. Soc. xxi. 49; spikelets narrower 
more rigid, glumes (even in fruit) rigidly imbricated not inflated straw-colrd. or 
brown or (more often) chestnut or black. Cyperus nilagiricus, Hochst. ms.; St C 
Syn. Cyp. 2; Boeck. in Linnea, xxxv. 457. C. atro-ferrugineus, Steud. 1. c. 2. : 
Junghubnii, Miq. Fl. Ind. Bat. iii. 260. C. ater, Dalz. g Gibs. Bomb. FI. ? 
(not of VaÀl.). C. lucidus and lividus, Heyne ms. C. Eragrostis, Rottler, ms. 
C. semiteres, Heyne ms., Wall. Cat. 3310,—The Deccan Peninsula and Ceylon 
Distrip, Afric., S.E. Asia, Austral.—This var. is founded on the narrower spikelets; 
colour is accidental. 
Var. y stricta, C. B. Clarke, l.c. ; spikelets narrower straw-colour or yellow les 
compressed frequently short 6-12-fld. sometimes curved or twisted, glumes ari 
packed but loosely imbricated. Cyperus strictus, Lam. Ill. i. 146; Rowd. Fl. Int. 
i. 200; Kunth Enum. ii. 12; Mig. Fl. Ind. Bat. iii. 258. C. tortuosus, Kang vob 
Poet, l.c. 197 ; Nees in Wight Contrib. 75 ; Kunth l c. 16. C. divaricatus, ero. 
Ham; Wall. Cat. 3312 (partly).—N. India, from the Punjab to Assam, Chittagong 
and Chota Nagpore.—DISTRIB. Asia, Afric. 
8. P. polystachyus, Beauv. Fl. Owar. II. 48, t. 86, fig. 2; kg 
apparently simple or contracted into 1 head, spikelets clustered even ` 
fruit suberect (see var. 8) linear many-fld. dusky straw-colour sier : 
marked, nut oblong nearly symmetric truncate. Cyperus polystac dert 
Br. Prod. 214; Roxb. FL. Ind.i.193; Nees in Wight Contrib. 75; Kunti 
Enum. ii. 13; Dalz. & Gibs. Bomb. Fl. 281; Thw. Enum. 342; Boeck. in 
Linnea, xxxv. 477; Boiss. Fl. Orient. v. 365; O. B. Clarke in Journ. Jim ` 
Soc. xx. 280 and xxi. 51. C. odoratus, Linn. Sp. Pl. col. i. 46. C. Fan 
fructus, Steud. in Zoll. Verz. Ind. Archip. ii. 62 and Syn. Cyp.. 8. » 
strigosus, Wight ms. C. corymbosus, Roxb. ms. (not of Rottb.). C. eon 
Herb. Heyne, Wall. Cat. 3320 A. (partly). QC. bicarinatus, Herb. Ho" 
Wall. Cat. 3333.—Cyperus, Wall. Cat. 3340. 
Near the coast of INDIA from SIND to SINGAPORE; common. SILHET, Hook.f. § 
T. T.— DISTRIB. all warm especially maritime regions. much 
Glabrous. Stems 12-30 in., sometimes 0. Leaves overtopping stem or nd o 
shorter, } in. broad, weak. Umbel rays 1-7, up to 0-2 in. ; spikes NR -50- 
10-50 spikelets; bracts 3-6, spreading, up to 4-16 in. spikelets $ by de: ually); 
fld. Glumes boat-shaped, ovate, muticous, papery, not rigid. Stamens 2 (us 
anthers small, oblong. Nut compressed, biconvex, black, + length of glume Jets in 
Var, B. laxiflorus, Benth. Fl. Austral. vii. 261; spikes more open, spikelets v 
fruit rectangularly spreading subsolitary, often more tinged with y ollon: Kunth 
brown, Cyperus paniculatus, Rottb. Descr. et Ic. 40. C. plenus, Heyne f^ not of 
Enum. ii. 12. ©. geminatus, Heyne ms. C. Hookerianus, Arnott ms. ( 
Thwaites). H hot 
The Deccan, and Maray Peninsulas, and CEYLON, frequent. —D STRIP. 3 
regions. 
