616 CLXXII. CYPERACEJ;. (C. B. Clarke.) \Cyper 



fleshy sometimes almost spongy, when dry convolute. Habit and general aspect of 

 C. longus, but the root of large states of C. rotundus. Schweinfurth, who has 

 studied this whole series of species alive, doubts if any line can be drawn between Q. 

 longus and C. rotundus. 



53. C. subcapitatus, C. B. Clarke ; stems and leaves long slender, 

 umbel as though lateral of 24 spikelets contracted or subcapitate, lowest 

 bract long narrow as though a continuation of the stem (otherwise nearly 

 as G. rotundus). C. polystachyus, Rottb. Descr. et Ic. 39, t. 11, fig. 1 ? 

 Cyperus, Wight in Wall. Cat. n. 3316. 



DECCAN PENINSULA; Wallich. NILGHIRI HILLS;' alt. 2000 ft., Gamble. 



Stem 20 in., at top less than -^ in. in diam., at base oblique nodosely thickened 

 then abruptly contracted into a long slender rhizome. Leaves somewhat shorter 

 than stem, | i in. broad. Umbel rays 0- in. Spikelets slender, ferruginous- 

 brown. 



54. C. tuberosus, Rottb. Descr. et Ic. 28, t. 7-, fig. I, fide Boeck. ; 

 stolons elongate rather slender, stern tall at base bulbous woody, umbel 

 evolute rays slender (in form C. tenuiflorus, s.p. Roxb., very slender), 

 spikelets linear (in form C. tenuiflor. very slender), glumes in fruit 

 not closely imbricated (otherwise as (G. rotundus}, Roxb. Sort. Beng. 5 

 $ Fl. Ind. i. 199 ; Kunth Enum. ii. 50 (in small part) ;' Boeck. in Linncea, 

 xxxvi. 285 (excl. the Gape plants and descrip. of nut). C. Pangorei, Retz. 

 Obs. iv. 10 (not of Rottb. or Roxb.). C. lucidulus, Klein; Link. Jahrb. iii. 

 86 (not of C. B. Clarke). C. rotundus, Benth. .Fl. Austral, vii. 279 

 (chiefly). C. rotundus (tenuiflora) Tliw. Enum. 343. C. rotundus, var. 

 procerula, C. B. Clarice in Journ. Linn. Soc. xxi. 172 \in great part). C. 

 rotundus, var. acuta, Boeck. 1. c. 230. C. tenuiflorus, Roxb. I. c. 199 ; Nees 

 in Wight Contrib. 82 (Indian plant) ; Dale, fy Gibs. Bomb. Fl. 284; W. 

 Wats, in E. T. Atkinson Gaz. x. (1876), 393; Trimen in Journ. Bot. xxiii. 

 140 ; C. B. Clarke in Journ. Linn. Soc. xx. (1883), 193 and xxi. 174 (not 

 Rottb. or Boeck.). C. procerulus, Nees in Wight Contrib. 82; Kuntli 

 Enum. ii. 51. C. Retzii, Nees 1. c. ; Kunth I. c. 73 ; Thw. Enum. 343. 

 C. hexastachyus, Nees 1. c. (partly). C. Koestelii, Kunth I. c. 58. C. 

 pertenuis, Bojer Sort. Maurit. 379 (not Roxb.). C. longus, Raker FL 

 Maurit. 411. ' C. mitis, Steud. Gyp. 316 (cf. Boeck. in Flora, 1859, p. 447). 

 C. procerus, Herb. Roxb. ; Wall Cat. 3329, A. 



CEYLON; Thwaites, nn. 3750, 3966, Deccan Peninsula; Wallich, Wight. 

 BENGAL; Wallich, Griffith (Kew I>istrib. n. 6141). DISTKIB. Mauritius, 

 Austral. 



Equal in size to the large forms of C. rotundus, but has slenderer rays and 

 spikelets. It is C. tuberosus of herbs of Kcenig, Rottler and Roxburgh ; the figure of 

 Rottboel (tuberosus) does not agree very well ; but, as it is satisfactory to Boeckeler, 

 and as it is impossible to identify an old picture without analyses, it saves complica- 

 tion to accept his identification, rather than to separate farther the 0. tuberosus of 

 Rottler (and others) from that of Rottboell. 



55. C. esculentus, Linn. Sp. PI. 67 ; stem at base erect, stolons 

 lateral long very slender bearing tubers, leaves and bracts long, spikelets 

 yellow or yellow-brown, glumes over nearly their whole breadth plicate- 

 striate (otherwise as C. rotundus). Kunth Enum. ii. 61 ; Boeck. in Linnsea, 

 xxxvi. 287 ; C. B. Clarke in Journ. Linn. Soc. xx. 293 and xxi. 178. C. 

 Tenorii, Presl. Reichb. Ic. Fl. Germ. viii. 32, t. 281, fig. 670. C. pumilus 

 and C. jeminicus, Herb. Leyne\ Wall. Cat. 3354. 



