JRynchospora.'] CLXXII. CYPEEACE^;. (C. B. Clarke.) 669 



NEPAL and ASSAM to CEYLON, NICOBAES, Kurz and MALACCA. DISTEIB. Trop. 

 Africa, S.E. Asia to Japan, Malaya, trop. Australia. 



Stems tufted, 4-24 in., trigonous, striate, smooth ; stolons 0. Leaves several, 

 stem, in. broad, flat, minutely scabrous, glabrous or sometimes hairy. Spikelets 

 20-50 in a head, 5 in. diam. ; bracts 3-8, 1-3 in., glabrous or villous-ciliate. 

 Glumes 6-7 j 3 (or 4) lowest empty, ovate, scarcely acute ; fourth longer containing 

 a perfect flower, fifth containing a sterile (or no) flower; seventh glume (when 

 present) narrow, thin, rudimentary. Hypogynous bristles sometimes 6 as long as 

 nut, brown, scabrous (teeth pointing upwards) sometimes 6-4 half as long less 

 scabrous, sometimes rudimentary or 0. Stamens 2, less often 3 ; anthers linear - 

 oblong, crested. Nut % glume ; beak narrow conic, - nut, pale, smooth or rarely 

 scabrous. 



Sect. 2. HAPLOSTYLIS (Genus), Nees in Nov. Act. Acad. Nat. GUT. xix. 

 Suppl. i. (1843), 101. Spikelet bearing one nut. Glumes obscurely disti- 

 chous. Nut dorsally compressed i.e. flattened with one face next axis (as 

 in Juncellus). 



2. R. Wig-htiana, Steud. Gyp. (1855), 148 (Rhynchospora) ; spikelets 

 about in., hypogynous bristles 6 scabrous, style very shortly 2-fid, nut 

 linear-oblong black minutely white dotted. Boeclc. in Linnsea, xxxvii. 

 (1873), 544. Haplostylis Wightiana, Nees in Nov. Act. Acad. Nat. Gur. 

 xix. Suppl. i. (1843), 101. 



MADRAS PENINSULA, from POONA, Jacquemont and CHUNDA, Duthie, to 

 QUILON, Wight. DISTEIB. Cocbin China. (Also a var. in Brasil.) 



Stems tufted, 4-24 in., slender, trigonous, glabrous; stolons 0. Leaves several, 

 - stem, ^ in. broad, glabrous, or scarcely ciliate. SpiTcelets numerous, in a 

 dense rusty brown head in. diam. ; bracts 3-6, 2-6 in., ciliate on margins near 

 base. O-lumes 6-7; 3 (or 4) lowest small empty, fourth longer with perfect nut- 

 bearing flower, upper male or rudimentary. Bristles rigid, as long as nut (some- 

 times twice as long), brown, minute teeth pointing upwards. Nut glume, 

 sometimes ornamented by scattered papillae; beak f nut, pale, decurrent on margins 

 of nut. 



3. R. longrisetis, Br. Prodr. (1810), 230 (Rhynchospora).; spikelets 

 nearly -| in., hypogynous bristles 3 scabrous 3 plumose, style very shortly 

 2-fid, nut linear-obovoid brown. Boeck. in Linnsea, xxxvii. 541; Benth. 

 Fl. Austral, vii. 350. R. Prescottiana, Wall. Cat. 3423. J Scngenus 

 longisetis, Poir. Encycl. Suppl. ii. 252. Cephaloschcenus longisetis, j *Nees 

 in Linnsea, ix. 296. C. longirostris, Nees? in Nov. Act. Acad. Nat. Gur. 

 xix. Suppl. i. (1843), 101 in Obs. 



BUEHA; Prome, Wallich n. 3423 ; Karenia and Pegu, Kurz; Nummayan, R. 

 Scott. DISTEIB. North Australia. 



Closely resembling R. Wightiana, but heads larger. Hypogynous bristles 

 usually twice nut (exclusive' of beak), in the upper half all are simply scabrous with 

 teeth pointing upwards, in the lower half the 3 inner (petals) are nearly glabrous, 

 the 3 outer (sepals) densely plumose. Nut nearly in., often minutely bristly on 

 shoulders; beak f nut, conic-oblong, not decurrent on nut. [There are several 

 closely allied Australian species included under R. longisetis both by Bentham and 

 Boeckeler.] 



Division II. POLYCEPHAL^E. Spikelets in distant dense globose heads. 

 Stems with nodes and leaves far above base. [The other species of this 

 division form the genus Cephaloschoenus proper of Nees, and have the nut 

 dorsally compressed ; but the single Indian sp. has the nut laterally 

 compressed i.e. is closely allied to R. Wallichiana.~] 



