594 CLXXII. CTPERAOE^. (C. B, Clarke.) [Pycreus. 



Fl. Ind. i. 203, chiefly. C. flavidus, Herb. Heyne ; Watt. Gat. 3336, A. C. 

 tegetum, Herb. Wight ; Wall. Cat. 3355, B. 



The DECCAN PENINSULA ; Bottler, Wiglri, &c. CEYLON; Thwaites. DISTEIB. 

 China. 



Glabrous, annual. Stem erect at base, subsolitary, 1-2 ft. Leaves often as ' 

 long as stem, in. broad. Spikelets f by i in., 7-30-fld., sides very parallel. 



Var. /3. quinquagintiftorus, C. B. Clarke, I.e. 69; spikelets elongate up to 50- 

 fld., antheis apiculate. Cyperus macrostachyus, Vdhl Enum. ii. 349 (as to plant 

 of Bottler, not of Lam. or Po*>.). C. longus, Herb. Heyne ; Wall. Cat. 3336 B. 

 Madras, Heyne. 



13. P. albomarg-inatus, Nees in Mart. Fl. Bras. ii. part 1, 9 ; 

 umbel simple or compound, spikelets long yellow or ruddy brown, glumes 

 obtuse white-edged in fruit spreading not imbricate, nut obovoid greatly 

 compressed nearly as long as glume. Cyperus Hochstetteri, Nees ms. ; 

 Krauss in Flora, xxviii. 755 (in note) ; Boeck. in Linncea, xxxv. 471 ; C. B. 

 Clarke in Journ. Linn. Soc. xxi. 69. C. flavicomus, Torrey Bot. Mexic. 

 Bound. 226; Benth. Fl. Austral, vii. 261 (excl. syn., not of Michx.). 



CONCAN and MALABAR; G. Thomson, &c. RANGOON; B. Scott, Kurz.-~ 

 DISTRIB. Tropics. 



Glabrous, annual. Stem erect at base, subsolitary, 1-3 ft. Leaves often f length 

 of stem, \ in. broad. Umbel rays sometimes 11, up to 7 in. long, sometimes 2-3, 

 only 1 in. long. SpiJcelets often large, 1 by i in. 



INDETERMINABLE SPECIES. 



C. KAMPHOSVENERI, BoecTc. Gyp. Nova, i. (1888), 5 ; rhizome tuberous, style but 

 little exserted shortly 2-fid. NICOBAR ISLDS. ; Kamphoevener. 



3. JUNCELLUS. 



Stem erect, simple, leafy only near base. Inflorescence umbellate or 

 capitate. Spikelets linear or oblong, compressed; rhacheola persistent. 

 Glumes distichous, deciduous, concave, muticous, 2 lowest empty, 4- oo suc- 

 ceeding bisexual, uppermost 1-3 sterile or empty. Stamens 3-2, anterior ; 

 anthers oblong-linear. Nut plano-convex, broad plane face flat against 

 rhacheola ; style-base continuous with nut, not tumid ; branches 2, linear. 

 Species 12, in all warm climates. 



This genus is Cyperi Sect. Juncellus of Kunth, and differs from Cyperus by 

 having a 2-fid style, and more or less compressed, not equilaterally trigonous nut. 

 Several of the species have been considered by Boeckeler and others as forms with 

 2-branched styles of corresponding species of Cyperus. 



* Inflorescence umbelled. 



1. J. serotinus, G. B. Clarke; stoloniferous, stout, stem at top 

 triquetrous thick, leaves and bracts long, umbel compound, spikelets linear 

 in dense spikes, glumes broad-ovate obtuse 7-9-nerved, nut longer than ^ 

 the glume. Cyperus serotinus, Rottb. Descr. et Ic. 31 ; Kunth Enum. ii. 

 19 ; Boeck. in Linnsea, xxxv. 492. C. Monti, Linn. f. Suppl. 102 ; Host. 

 Gram. Austr. iv. 38, t. 67 ; Reichb. Ic. Fl. Germ. viii. 32, t. 279, fig. 666 ; 

 C. B. Qlarkein Journ. Linn. Soc. xxi. 72, t. 3, fig. 29 ; Boiss. Fl. Orient, v. 

 366. C. japonicus, Miq. in Ann. Mus. Lugd. Bat. ii. 140. C. puncticulatus, 

 Aitch. in Journ. Linn. Soc. xix. 189 (not of Vahl}. Monti, Bonon. Prodr. 12, 

 t. 1, fig. 2. 



