612 CLXXII. CYPERAOE^I. (C. B. Clarke.) [Cyperus. 



42. C. tegretiformis, Roxb. Hort. Seng. 6, and Ic. ined. t. 1321; 

 leaves hardly any, stem trigonous at top often triquetrous not (or ob- 

 scurely) transversely septate, bracts short (rarely |- length of umbel) lowest 

 green (not ovate at base) with margins recurved in dried examples (other- 

 wise as G. articulatus}. Wall. Cat. 3351 B (partly} ; Kunth Enum. ii. 56 ; 

 Am. in Wight Contrib. 89, in note-, C. B. Clarke in Journ. Linn. Soc. xxi. 

 157. C. nudus, Roxb. Fl. Ind. i. 209, not 187 nor H. B. K. C. benga- 

 lensis, C. Spreng. Neu. Entd. iii. 101. C. Gula-Methi, Roem. fy Sck. Syst. 

 ii. Mant. 125. C. corvmbosus, Ic. Madras, W^all. Cat. 3351 (largely}. 

 Cyperas sp. n. 40, H^f. Sf T. Th. Herb. Ind. Or. (Chittagong example). 



BENGAL and ASSAM, MADRAS and BUNDELCUND. DISTRIB. China, Japan. 



This has been confused with C. malaccensis, Lam., which differs by the very 

 narrow wing to rhachilk of'spikelets, by the loosely imbricated concave subinflated 

 glumes, and by the apex of.stern 3-\vinged. 



43. C. corymbosus, Rottb. Descr. et Ic. 42, t. 7, fig. 4 ; stem at top 

 obscurely trigonous, uppermost leaf short or 0, bracts ^-f length of umbel 

 or sometimes overtopping it, spikelets ferruginous or reddish (otherwise 

 as' C. tegetiformis}. Thw. Enum. 344 ; C. B. Clarke in Journ. Linn. Soc. 

 xxi. 158. 0. diphyllu?, Retz Obs. v. 11 ; Kunth Enum. ii. 54>; Boeck. in 

 Unnsea, xxxvi. 272. C. Koenigii, Vahl Enum. ii. 302 ; Kunth 1. c. C. 

 monophyllus, Vahl I. c. ii. 352 (fide Nees). C. seminudus, Roxb. Fl. 

 Ind. i. 187 ; Nees in Wight Contrib. 80 ; Kunth I. c. 55 (not o/Moritz.). C. 

 enodis. Boeck. 1. c. 271. Papyrus Pangorei, Nees I. c. 88 (partly}. Fim- 

 bristylis, Wall. Cat. 3525 E. 



From KUMAON, Wallich, to ASSAM, BURMA, CEYLON. DISTRIB. As., Afric., 

 and Amer. 



Stems 2-3 ft., when dry often more or less transversely septate. Uppermost 

 leaf in the type example of Retz, nearly 6 in. long. Bracts leaf-like, green, not 

 ovate at base, keeled, with margins recurved in the dry state, in the type of C. 

 diphylla, Eetz, much overtopping the inflorescence. 



Var. (3 Pangorei, C. B. Clarke, 1. c. 292, 159 ; spikelets 1 in. 18-36-fld. C. 

 Pangorei, Rottb. I.e. 31, t. 7, fig. 3; Kunth I.e. 57. C. corymbosus var. macros- 

 tachya, Boeck. I. c. 277 (of. Steud. Syn] Cyp. 31, note to C. corymbosus). Deccan 

 Peninsula, Wall. Gat. 3351 C, &c. (Herb. Kew). Madagasc. 



44. C. scariosus, Br. Prodr. 216 ; stolons slender, stems long slender 

 at top triquetrous, umbel slender contracted, spikelets linear pale straw- 

 colour (very like those of C. tegetiformis). C. B. Clarke in Journ. Linn. 

 Soc. xxi. 159. 0. pertenuis, Roxb. Fl. Ind. i. 198 ; Nees in Wight Contrib. 

 83. C. rotundus, TKw. Enuw>. 343 (partly} ; Boeck. ms. partly, not of 

 Linn. 



BENGAL; Soondreebun, C. -B. Clarke, common. PEGTT, Kurz ms., 683, 684 

 (Herb. Calcutta). DISTRIB. Australia. 



Glabrous. Stolons ^-2 by -^ in., clothed by elliptic acute lax striate concolorous 

 scales in. long. Stems 16-36 in., at top -^"yV ^ u - ^ a diam. Leaves (in the Indian 

 as in Brown's examples) variable, usually short (less than ^ stem), sometimes much 

 longer, sometimes 0, narrow, weak. Umbel thin ; rays slender, sometimes up to 

 3 in. long, sometimes not in. ; bracts nearly always as the leaves, u e. hardly any 

 when leaves short, exceeding inflorescence when leaves longish. N)t very near C. 

 rotundus ; differs little from C. tegetiformis t but in the extreme sleriderness of stem 

 and umbel. 



Sect. 5. Subimbricata. Tall. Rhizome very short, woody ; stolons 0, 

 i. e. lateral shoots from base of stem immediately ascending. Glumes 



