Cyperus.~\ OLXXII. OYPERAOEJI. (C. B. Clarke.) 611 



Sect. 3. Bulbosi. Stolons slender, soon disappearing, terminating in 

 tunicated bulbils. Closely allied to Mariscus Sect. Bulbocaules. (Sp. 40.) 



40. C. bulbosus, Vahl Enum. ii. 342 ; coat of bulbils striated black 

 splitting into elliptic very acute segments, leaves overtopping stem narrow 

 flagellate, umbel contracted corymbiform lowest ray somewhat distant 

 (spikelets nearly as in C. rotundus}. Nees in Wight Gontrib. 80; Dalz. & 

 Gibs. Bomb. Fl. 284 ; Boeck. in Linneea, xxxyi. 300 ; Trimen in Journ. Bot. 

 xiii. (1884), 358. C. jemenicus, Retz. Obs. iv. 11 (jeminicus) ; Roxb. FL 

 Ind. i. 191 ; C. B. Clarke in Journ. Linn. Soc. xxi. 175, t. 2, figs. 17, 18 

 (var. j3 excl.) and in Journ. Bot. xix. 18, cum fig. (not of Rottb.). C. gemi- 

 natus, Kcenig ms. ; Ainslie Mat. Med. Hind. (1813), 250; Moon Cat. PI. 

 Ceylon, 6 (not of Sckrader). C. oleraceus, Roxb. ms. C. stoloniferus, 

 Nees in Wight Contrib. 81 (partly, not of Retz.). C. hexastachyus /3 pen-, 

 dulus, Nees in Wight Contrib. 82 (partly). C. rotundus, Kunth Enum. ii. 

 51 (partly); Thw. Enum. 343 (partly}. Cyperus, Wall. Cat. 3317, A. 

 (partly}. 



SIND; Stocks, &c. ALIGUBH; Duthie (n. 7670). The DECCAN PENINSULA 

 and CEYLON. DISTBIB. Trop. Afric., As. and Austral. 



Glabrous. Stolons ^-2 i n -> thread-like ; bulbils ovoid-conic, at first ^ in., white, 

 edible, ultimately larger with thick black coat. Stems 4-12 in., slender. Leaves 

 numerous, subbasal, up to ^ in. broad, tip long- caudate. TJmbel sometimes evolute, 

 rays up to 2 in., usually contracted 1-1 in. in diam. interruptedly subcorymbose ; 

 bracts overtopping inflorescence, similar to leaves. SpiJcelets 3-20 reddish, up to 

 4 by -^ in., 8-26-fld. ; wings of rhachilla elliptic, persistent. Glumes boat-shaped, 

 ovate, obtuse, 11-nerved. Stamens 3 ; anthers linear, muticous. Nut obovoid, 

 obtuse, triquetrous, black, hardly ^ glume ; style shorter than nut, branches linear, 

 somewhat long.' In the absence of roots this species can generally be discerned by 

 the imperfection of the umbel i.e. lowest bract with its ray a little distant. 



Sect. 4. Brevefoliati. Tall. Stolons long, hardening into creeping 

 rhizomes. Leaves short, rarely \ length of stem. Glumes approximate, 

 closely imbricate. (Sp. 41-44.) 



41. C. articulatus, Linn. Sp. PL 66; stem robust terete, leaves 

 hardly any, umbel compound of many spikes, bracts very short acute scale - 

 like, spikes linear many-fld., nut oblong- ellipsoid f length of glume 

 Kunth Enum. ii. 53 ; Nees in Wight Contrib. 80 ; Thw. Enum. 343 ; Boeck. 

 in Linn(sa^ xxxvi. 274 ; C. B. Clarke in Journ. Linn. Soc. xx. 291, and xxi. 

 155. C. nudus, Roxb. Fl. Ind. i. 187 (not 209, nor H. B. $ K.). C. gymnos. 

 Roem. & Sch. Syst. ii., Mant. 97. C. diphyllos, Benth. Fl. Austral, vii. 

 279 (chiefly, not Retz). Cyperus, Wall. Cat. 3364. 



BENGAL to CEYLON. DISTRIB. All warm regions. 



Glabrous. Stolons |-- in. diam., clothed by ovate-lanceolate striate brown- 

 black scales | in. long. Stems 3-6 ft., often 2-4 in. apart on the thick woody 

 rhizome, at top %-% in. in diam., terete or scarcely trigonous, when dry usually 

 with false nodes |- in. apart ; upper sheaths usually terminated by a subspathaceous 

 lanceolate-colrd. limb, rarely by a small green leaf. Umbel rays often 10, up to 

 2-6 in. ; bracts -f in., ovate, striate, subturgid at base hardly keeled, concave, 

 margins not reflexed. Spikelets 5-15 together, shortly spicate, ^-1^ by ^\ in., 12- 

 50-fld., straw-colrd., afterwards dusky. Glumes even in fruit imbricate, ovate, 

 obtuse, concave, scarcely keeled, obscurely 3-5 -nerved on back; wings of rhachilla 

 oblong or elliptic, scarious, ultimately deciduous. Stamens 3 ; anthers linear -oblong, 

 muticous. Nut trigonous, acnte at either end, black ; style shorter than nut ; 

 branches linear, shortly exsert. 



R r 2 



