598 CLXXII. CYPERACE^;. (C. B. Clarke.) [Cyp&rm. 



2..C. platystylis, Br. Prodr. 214; leaves and bracts long, umbel 

 compound, spikes near together often very numerous. C. B. Clarke in 

 Journ. Linn. Soc. xxi. 27, 117, 1 1, figs. 7-9 (excl. syn. C. caducus). C. 

 pallid us, Heyne ms. ; Nees, in Linnsea, ix. 284, and in Wight Contrib. 79 ; 

 Kunih Enum. ii. 40; Thw. Enum. 343. C. canescens, Herb. Heyne, and 

 C. fluitans, Herb: Ham.-, Wall. Gat. 3337,3359 D (partly). Anosporum 

 pallidum, Soeck. in Linnsea, xxxvi. 412. 



From BENGAL and BURMA to CEYLON and PENANG. DISTRIB. Malaya, 

 Austral. 



Glabrous, floating in tanks. Stolons covered by ovate acute striate pale-brown 

 scales. Stems solitary, 6-42 in. Leaves often as long as stem, up to 5-^ in. broad, 

 coarse, cutting, nerves many, strong. Umbel 1-10 in. diam. ; bracts 8-18 in., leaf- 

 like, somewhat corymbose. Spikelets 5-1300, 1-6-togetber digitate, | by $ in., 

 20-40 -fld., brown pale or reddish ; rhaehilla persistent, scarcely winged. Glumes 

 very close-packed, boat-sbaped, back with 3 green nerves. Stamens 3 ; filaments 

 ligulate ; anthers linear-oblong, crested with a small linear-lanceolate red mucro. 

 Nut ellipsoid, f length of glume, unequally trigonous, pale brown, corky cells of the 

 angles straw-colrd. ; style much shorter than nut, deciduous, branches as long as 

 style. 



Sect 2. Amabiles. Slender annuals. 'fTmbel very rarely reduced to a 

 single head. Spikelets small. Glumes mucronate. (Sp. 3-5.) 



3. C. amabilis, Vahl Enum. ii. 318 ; spikelets linear, golden-brown, 

 glumes truncate mucro short erect, stamen 1, nut obovoid f length of 

 glume. Kuntli Enum. ii. 108 ; C. B. Clarice in Journ. Linn. Soc. xx. 283, 

 and xxi. p. 85. C. aureus, H. B. K. Nov. Gen. et Sp. i. 205 ; Kuntk L c. 21. 

 JBoeck. in Linnaea, xxxv. 494. 



KUMAON, King. MORADABAD, Thomson. CHOTA NAGPORE; up to 2000 ft., 

 C. JB. Clarke. DISTRIB. Warm regions. 



Glabrous. Stems csespitose, 2-8 in. Leaves i-| length of stem, T ^ in. broad, 

 weak. Umbel often very compound, rays 4 in. long; sometimes reduced to 1 head 

 (very variable in development) ; bracts up to 2 in., leaf-like. Spikelets 3-10 in a 

 spike, up to f by T V~rV ^ n ' 36-fld. (often much shorter). Q-lumes boat-shaped, back 

 3-5-nerved, sides nerveless, mucro variable (often very short). Anthers small, oblong. 

 Nut fine brown ;' style as long as nut, branches 3, linear. 



4. C. castaneus, Willd. Sp. PI. i. 278 ; small, umbel rarely com- 

 pound, spikelets linear chestnut or pale, glumes obtuse mucro conspicuous 

 recurved, stamens 2-1, nut exactly oblong -f length of glume (mucro 

 excluded). Roxb. Fl. Ind. i. 195 ; Nees in Wight Contrib. 79 ; Kunth Enuwi. 

 ii. 21 ; Thw. Enum. 343 ; Boeck. in Linntea, xxxv. 496 (excl. Wall. 3376 B) ; 

 C. B. Clarke in Journ. Linn. Soc. xxi. 87. C. squarrosus, Trimen Cat. 

 Ceylon PI. 100. C. pusillus, Herb. Wight ; Wall. Cat. 3323. 



From EAST NEPAL, J. D. Hooker, to CEYLON, Thwaites, and PERAK, King. 

 DISTRIB. Tonkin, Austral. 



Glabrous. Stems f-6 in. Leaves as long as stem, T V in. broad, or (usually) 

 shorter. Umbel rays 0-2 in. rarely again divided, sometimes reduced to a single 

 head; bracts often as long as inflorescence. Spikelets 3-20 in a cluster, black- 

 chestnut in type form, -| by Jg- in., 15-70-fld. Glumes boat-shaped, back 3-nerved , 

 keel excurrent greenish -yellow. Anthers small, short-oblong. Nut red-black, sides 

 exactly parallel ; style much shorter than nut; branches small, linear. 



5. C. cu^pidatus, JL B. & K. Nov. Gen. et Sp. i. 204; glumes 

 strongly 3-n^rved; mucro conspicuous recurved, nut oblong-obovoid | 



