Mariscus.~] CLXXII. CYPEEACB^E. (0. B. Clarke.) 623 



Var. ? S Jchasiana ; spikelets small obtuse yellow beariug 1 deciduous nut. 

 East Bengal, Griffith ; Khasia Hills ; Shillong, alt. 4000 ft., 0. S. Clarke. 



Sect. 2. Pseudo-cyperus. Glumes in fruit scarcely imbricate (but per- 

 sistent). Spikelets bearing 4 (or more) nuts. (Sp. 8-10.) 



8. IK. ischnos, C. B. Clarke; umbel of 1-3 spikes nearly (or quite) 

 agglomerated into 1 head, .spikelets oblong bearing 4-7 nuts dirty-white, 

 rhacheola very narrowly winged, nut oblong-ellipsoid ^ length of glume. 

 Cyperus ischnos, Schlecht. in Bot. Zeit. vii. 99 ; Boeck. in Linn&a, xxxvi. 



280. 



NILGHIBI and KUEG HILLS, G. Thomson j[the single Old World example). 

 DISTEIB, Trop. America. 



Nearly glabrous. Rhizome short. Stems 1-2 ft., slender. Inflorescence % in. 

 -in diam., ovoid, dense. Spikelets 3 by -^ in. Nut-bearing glumes elliptic-oblong, 

 obscurely 9-nerved. Style short; branches 3, linear. 



9. M. Hookerianus, C. B. Clarke; umbel of 7 cylindric dense 

 spikes, rays scarcely any, spikelets oblong bearing 4 nuts dirty-white, 

 wings of rhachilla lanceolate deciduous, nut oblong-ellipsoid as long as 

 glume. 



SIKKIM ; in hot valleys, J. D. Hooker. 



Glabrous. Rhizome (seen) horizontal, woody, rather slender. Stems approxi- 

 mate, 20 in. Leaves 8-12 by in. Umbel 1 in. in diam. ; rays 0~j in. ; bracts 4, 

 up to 6 in. Spikes f by 3 in. Spikelets 4 by T ^- in., when ripe obliquely erect. 

 Nut-bearing glumes obtuse, with 9-11 strong nerves. Nut trigonous ; style -branches 

 3, linear. 



10. TC. squarrosus, C. B. Clarke ; slender, annual, umbel subsimple 

 spikes loose broad quadrate, spikelets divaricate linear 6-26-fld., glumes 

 elliptic with long recurved mucro, style 3-fid, nut linear-oblong curved. 

 Cyperus squarrosus, Linn. Sp. PI. 66; Rottb. Dtscr. et Ic. 25, t. 6, fig. 3; 

 Nees in Wight Contrib. 75 ; Kunth Enum. ii. 22 ; Dalz. & Gibs. Bomb. Fl. 

 281 ; Boeck. in Linntea, xxxv. 501 ; C. B. Clarke in Journ. Linn. Soc. xx. 

 284, and xxi. 94 (excl. var. |8). C. maderaspatanus, Willd. Sp. PI. i. 278 

 (excl. ' syn. Pluk.). C. hyalinus, Herb. Heyne ; Wall. Cat. 3313 A. C. 

 pusillus, Herb. Wight (partly). Pycreus squarrosus, Nees in -Linncea ix. 

 283. Cyperus, Wall. Cat. 3312 D (partly). 



From BKNGAL to CEYLON, and MEBGUI. DISTRIB. Trop. Afric. 



Glabrous. Stems 3-8 in., caespitose. Leaves often as long as stems, Jg. in. 

 broad, weak. Umbel rays rarely up to 2 in. ; bracts exceeding umbel, leaf-like. 

 Spikelets 6-20 in a rather loose spike, in the common form in. 6-8-fld., sometimes 

 nearly 1 in., 26-fld. ; rhachilla dehiscing from a pulvinus above the two lowest empty 

 glumes. Stamen 1. Nut about length of glume (excl. its long arista). Resembles 

 Cyperus aristatus, Eottb., with which it was mixed by Linnaeus, and by many 

 av chors since. 



Sect. C. Turgiduli. Spikelets oblong or subovoid, hardly compressed. 

 Umbels compound. Robust plants with coarse leaves. (Sp. 11.) 



ll. 1*1. albescens, Gktu~d. in Freyc. Voy. Bot. 415 ; leaves somewhat 

 thick transversely lineolate, spikelets closely approximate hardly con- 

 gested somewhat turgid oblong bearing 3-6 nuts, glumes obtuse, nut short 

 broad ovoid. Cyperus pennatus, Lam. III. i. 144; Kunth Enum. ii. 80 ; 

 Thw. Enum. 343 ; C. B. Clarke in Journ. Linn. Soc. xxi. 194. C. canescens, 

 Vahl Enum. ii. 355 (excL syn. Rheede) ; Nees in Wight Contrib. 84 ; Kurz 



