620 CLXXII. OTPERACB^. (0. B. Clarke.) {Mariseus. 



1. Iff. Dreg-eanus, Kunth Bnwm. ii. 120 ; stolons 0, umbel contracted 

 into 1 very dense ovoid head, spikelets ovoid bearing 2-6 nuts. M. irro- 

 ratus, Nees in Sooh. Kew Journ. vi. 28. M. kyilingiMformis, Boeck.m 

 Flora, xlii. 443, 496 {style wrongly i-fid.). Oyperus dubms, Bottl. in Neu 

 Bchr. Gesell. Freunde Berlin, iv. 193 ; Botch. Fl. Ind. i. 189. Wall. Gat. 3326 ; 

 Nees in Wight Oontrih. 85 ; Thw. Enum. 344 ; Boeck. in LmniBa, xxxvi. 386 

 {in small part) ; G. B. Glarhe in Journ. Liwn. 8oc. xx. 285 and xxi. 197 {not 

 of Bottb^. 0. kyllingiffioides, Vahl Enum. ii. 312; Kunth Enum. n. 94. 

 0. cruentus, Boeck. I. c. 388 {not of Boxb.). Scirpus glomeratus, Linn. 8p. 

 PI. 32. Schoenns coloratns, var. fi Linn. 8p. PI. ed. ii. 64. Sch. niveus, 

 Linn. Spst. Veget. (ed. xiii.), 81. 



Lower Bengai; WalUch. S. Deccan; up to 5000 ft.; Mottler, Wight. 

 Cetlon ; Thwaites, C.P. 855, 2942, &c. Maiat Peninsula ; from Pegu, Singapore. 

 DiBTEiB. Afric, Borneo. 



Glabrous. Stems 4-16 in., at top triquetrous, rather slender; lowest persistent 

 as torn fibrils. Leaves often as long as stems, Jj-i in. broad, weak; sheath dilated, 

 ferruginous or reddish. Inflorescence i in. in diam. ; bracts 3-5, up to 4-6 in. long, 

 leaf-like. Spikelets numerous, i-i in. long, nearly terete ; nodes of rhaehilla short 

 with elliptic wings. Nuthearing glume ovate, blunt, triangular, 14-19-nerved. 

 Stamens 3-2; anthers linear-oblong, muticous. JTat oblong or somewhat obovoid, 

 trigonous, ashy black, |-| length ot glume ; style shorter than nut ; branches linear, 

 somewhat long. — Cyperus dubius, Sottb. Bescr. et Ic. 20, t. 4, fig. 5, brought here 

 by all authors, is a Kt/lUnga, probably K. brevifolia, Rottb. ; the general appearance 

 of the head will not do for M. Dregeanus ; also in Kyllinga the style is always 2-fid, 

 in Mariscus always 3-fid. 



2. IH. bulbosus; C. B. Glarke {not of Steud.) ; stolons slender, umbel 

 simple with short rays or subcapitate, spikes cylindric dense pale, spikelets 

 broad-oblong, bearing 1 nut. M. pictus, Nees in Wight Gontrib. 90 {partly). 

 Kyllinga bulbosa, Koenig ms. ; Vahl Enum. ii. 376, in note ; Boem. & Sch. 

 Syst. ii. 247, in Obs. {not of Beauv.). — Mariscus, Wall. Cat. 3435 {mainly). 

 Kyllinga, Wall. Oat. 3441 A {partly). 



DeocaiJ Peninsula, Sottler, Meyne; Palavarum to Permacoil, in the hills, 

 Wight ; N. Canara, Young. 



Glabrous. Stems 3-8 in., thickish, trigonous, striate ; stolons elongate, -^-^ in, 

 in diam., clothed by oblong striate pale-brown scales. Leaves as long as stem, -^ 

 J in. broad ; lower sheaths much inflated, striated, brown. Spikes about 7, on rays 

 0-5 in., up to f by i in. ; bracts 5-7, up to 4-7 in., leaf-like. Spikelets -jV^i '"•' 

 spreading at right angles. Nat-bearing glume ovate, acute, 11-17-striate, straw- 

 colour. Nut ellipsoid, trigonous, black-chestnut, f length of glume. 



Subgen. II. Etr-MABisoTJS. Base of stems not oblong thickened by 

 much dilated leaf-sheaths (though often shortly nodose). Bhacheola of 

 spikelets only breaking up at one node, viz. that above the two lowest 

 empty glumes. 



Sect. 1. Umbellati. Leaves green. Spikelets green or becoming yellow, 

 bearing 1-2 {very rarely 3) nuts. Lowest glume of spikelet {bracteole of 

 some) very acute, aristate. — [Nearly all are considered by Bentham as 

 varieties of his Cyp. umbellatus.'] (Sp. 3-7.) 



3. nz. paniceus, Vahl Enum. ii., partly ; stolons long slender, umbel 

 simple, bracts 4-5 long, rays unequal usually short, spikes solitary cylin- 

 dric dense ebracteate, spikelets small 1-fld., in fruit broad-lanceolate 

 trigonous curved more or less recurved. Nees in Wight Contrib. 89 ; 



