670 CLXXII. CYPERACE^. (C. B. Clarke.) [Rynchospora. 



4. R. malasica, C. B. Clarke-, globose spikes 2-6 distant spiked 

 or racemed, spikelets 1-fld., hypogynous bristles 5-6 twice as long as nut 

 capillary smooth, style very shortly 2- fid, nut obovoid smooth chestnut- 

 colrd. beak narrowly conic pale. 



MALAY PENINSULA j Malacca, Griffith (Kew^n. 6353) ; Singapore, Ridley. 

 DISTEIB. Borneo. 



Stems nearly 2 ft. Leaves often overtopping stem, i in. broad, glabrous or 

 scabrous pilose ; bracts all similar to leaves, lowest sometimes 4 in. from the next. 

 Spikes -f in. diam. of about 15 spikelets. Spikelets % in., constructed as in R. 

 WallicMana. Nut % glume, biconvex ; beak nearly as long as nut, smooth, base 

 narrow. 



Division III. PANICULATE. Paniculate. Spikelets solitary or clustered. 

 Stem robust, with nodes and leaves (or bracts) far above base. Calyptro- 

 stylis (Genus), Nees in Linnsea, ix. (1834), 295, is part of this Division. 



5. R. aurea, Vahl Enum. ii. 229 ; robust, nearly glabrous, with- 

 out stolons, spikelets numerous in several corymbs, style very shortly 

 2- fid, nut obevoid truncate, beak as long as nut, and nearly as broad at 

 base. Benth. Fl. HonaJc. 396, and Fl. Austral, vii. 349 ; Miq. Fl. Ind. 

 Bat. iii. 336; Thw. Enum. 352; BoecJc. in Linn&a, xxxvii. 626. R. 

 articulata, Roem. fy Sch. Syst. Mant. ii. 49 ; Dalz. & Gibs. Bomb. Fl. 288 ; 

 Miq. Fl. Ind. Bat. iii. 337. Scirpus corymbosus, Linn. Amcen. Acad. iv. 

 303. Schoanus articulatus, Roxb. Fl. Ind. i. 184 [ed. Wall. 189]. S. 

 surinamensis, Rotfb. Descr. et Ic. 68, t. 21, fig. 1. Calyptrostylis florida, 

 Nees in Mart. Brasil Gyp. 138, t. 13. Cephaloschrenus articulatus, 

 Nees in Edinb. New Phil. Journ. (1834), 266, and in Wight Contrib. 115. 

 Cyperus, Herb. Wight-, Wall. Oat. 3371 A. Rynchospora, Wall. Cat. 

 3424, 3426. 



Throughout INDIA (except the north-west), in the hot region, abundant ; from 

 SIKKIM and ASSAM to CEYLON and SINGAPORE. DISTBIB. Warm regions of the 

 globe. 



Stems 2-3 ft., smooth or scabrous upwards, with leaves (or leaf-like bracts) their 

 whole length. Leaves 1-2 ft. by -1 in., on margins (and often on keel beneath) 

 scabrous. Panicle often 1 ft. long, composed of 3-5 corymbs. Spikelets mostly 

 solitary, rusty -brown, about i in. long. Glumes about 7 ; lowest 3 (or 4) smaller, 

 ovate, sometimes mucronate ; fourth glume longer, subobtuse, with perfect flower ; 

 upper glumes male or sterile. Hypogynous bristles 6, as long as nut simply 

 scabrous, not rarely unequal or some deficient. Style exceedingly long, minutely 

 bifid at tip. Nut -^ in., glume, smooth, reticulated or transversely wavy; 

 beak pale, flattened, more or less grooved longitudinally on each face, rough, hardly 

 exsert from glumes. In the American forms the nut has usually two furrows on its 

 shoulders and 2 pits (sometimes large) on its back ; in the Asiatic plants these 

 furrows and pits are often just " indicated," often entirely absent. 



6. R. triflora, Vahl Enum. ii. 232 ; somewhat robust, nearly 

 glabrous, stolons often present, spikelets in loose corymbs, style very 

 shortly 2-fid, nut ellipsoid truncate transversely undulate, beak longer 

 than nut linear pyramidal. BoecJc. in Linnsea, xxxvii. 625. R. ceylonica, 

 Kuntli Enum. ii. 294. R. zeylanica, Thw. Enum. 352. Scirpus triflorus, 

 Poir. Eneycl. Suppl. ii. 248. Cephaloschoenus Zeylanicus, Neea in 

 Edinb. New Phil. Journ. 1834, 265, and in Wight Contrib. 115. Ephip- 

 piorhyncbium triflorum, Nees in Mart. Fl. Bras. ii. (pars 1) 136 in note. 



CEYLON ; Thwaites n. 3036, Macrae. DISTRIB. Tropical America. 



Stolons rather slender, clothed by ovate striate straw-colrd. scales. Stems, leaves, 



