618 CLXxii. oTPEEACEJi. (C. B. Clarke.) [Cyperue. 



58. C. Oatesii; C. B. Clarice; umbel large compound, spikes (at 

 least some) pednncled cyHndric, spikelets very many distant linear 14-fld., 

 glumes obtuse white-edged slightly inflated incurved not tightly imbricated, 

 wings of rhachilla linear yellow soon separating, anthers oblong not 

 crested, nut small yet nearly |- length of glume. 0. exaltatus, var. Oatesii, 

 O. B. Clarke in Journ. Linn. Soc. xxi. 188. 



Burma ; Thyat Myo, Oates. 



Very like slenderer forms of 0. exaltatns, but differing especially in the very 

 narrowly lanceolate yellow deciduous wings of the rhachilla. 



59. C. digritatus, Boxb. Fl. Ind. i. 205 ; stem tall at top triquetrous, 

 umbel large compound rays divaricate, spikes cylindric, spikelets very 

 many linear 6-40-fld., wings of rhachilla lanceolate yellow soon deciduous, 

 anthers linear-oblong scarcely crested, nut oblong-obovoid \ length of 

 glume. C. auricomns, Benih. Fl. Austral, vii. 286 ; 0. B. Clarke in Journ. 

 Linn. Soe. xxi. 188 {partly, scarcely of Sieher). 0. venustus, iVees in Wight 

 Contrib. 86 (descr, erroneous) ; Kunth Fnum. ii. 68 {chiefly) ; BoecTe. in 

 Linnsea,xxKvi. 316 (partly) {not Br.). 0. Neesii, Kunth I.e. 101 {excl. syn. 

 Linn.). ; Boeck. in Linnaa, xxxvi. 315 ; Trimen in Journ. Bot. xxiii. 140. 

 0. racemosus, Betz (PP) {fid Am. in Wight Contrib. 85 in Obs. C. quin- 

 quefloruB, Steud. (Serb, propr.) Syn. Gyp. 37 (partly). C. tuberiferus, 

 8chrad. ; Steud. I. c. 41. Papyrus venustus, Nees in LinntBa, x. 138. — 

 Mariscus, Wall. Cat. 3429, 3438. 



From the Punjab to Assam, Ceylon, and Penang. — Disteib. Tropics. 



Glabrous (even the rhachis of spikes). Stem li-H ft. Leaves often as long as 

 stem, J-| in. broad. Umbel 8-24 in. in diam. j bracts usually longer than umbel. 

 Secondary vmibels usually conspicuously bracteoled; spikes corymbose, shortly 

 peduncled. Spikelets often \-i by i^- ^^ in., very variable in size, yellow golden 

 rufous or brown. CHumes boat-shaped, ovate, scarcely mucronate. — The African 

 0. auricomus, Sieber, with which this was united by Bentham, is very closely allied, 

 but differs by the stem sub-3-winged at top, the irregular umbel and other small 

 points. 



Var. jS Eooieri (sp.) Boeck. in Linnsea, xxxvi. 308 ; spikelets somewhat broader 

 rigid very densely spicate ultimately bright brown, nut a little more acuminate at 

 top. C. Neesii, Thw. Enum. 344 ; 0. JB. Clarke in Journ. Lirm. Soc. xxi. 189 in 

 Obs. (scarcely of Kunth). C. auricomus, var. khasiana, 0. S. Clarice I. c. 188 and 

 81. Papyrus elatus, Nees in Wight Contrib. 88 (not Cyperus elatus, Linn.). — From 

 the Khasia Hills, alt. 4000 ft,, to Ceylon. 



60. C. elatus, Linn. Sp. PI. 67 ; tall, leaves and bracts long, broad, 

 umbel large compound, spikes narrow cylindric dense with brown suberect 

 spikelets, spikelets linear 14-fld., wings of rhachilla lanceolate yellow 

 caducous, anthers narrow oblong, crest i-i length of anthers, nut |-| 

 length of glume. C. B. Clarke in Journ. Linn. Soc. xxi. 189. C. race- 

 mosus, Betx Obs. vi. 20 ? ; Nees in Wight Contrib. 85 ; Kunth Fnum. ii. 100 ; 

 Boeck, in Linneea, xxxvi. 310. — Cyperus, Wall. Cat. 3341, A. 



Deocan Peninsula ; Wight. Penakg; WallicJi. — Disteib. Malaya. 



Stem 3—4 ft. Leaves nearly as long, \ in. broad. Primary rays of umbel 6 in. 



Var. ? macronum, C. B. Clarke 1. c. 190 ; larger, with still larger umbel, nut 

 nearly as long as glume. — Bengal ; Comilla, C. B. Clarice. — Leaves f in. broad, 

 two lateral nerves above strongly marked, keel beneath scabrous cutting. Primary 

 rays of umbel 10 in. 



61. C. platyphyllus, Boem. & ScL Syst. ii. 876 ; very large, leaves 



