Arundinella.\ Graminece. 177 



brown flat strongly twisted column, and subulate divaricate 

 pale scabrid point, palea of glumes III and IV rather 

 coriaceous, white, linear, 2-toothed, thickened and dorsally 

 hairy between the 2 slender keels, flaps incurved, thickened 

 towards the margins, 2-auricled at the very base ; anth. 

 linear ; grain loose in glumes III and IV, obovate-oblong, 

 compressed, about -^V in. long, pale brown, smooth, polished, 

 embryo half as long as the grain. 



Var. robusta. Hook. f. 



Stem stouter, darker coloured, more leafy, upper nodes 

 shorter, panicle up to 2\ in., spikelets larger. 



Swampy places. Suffragam district (Thwaites), Sabaragamuwa Pro- 

 vince (Ferguson). Var. robusta, Herb. Peraden., without habitat. Panicle 

 pale green. 



Bengal, Assam, South India, Burma. 



2. A. setosa, Trin. Diss. ii. 63 (1824). 

 Steud. Syn. Gram. 1 14. 

 Fl. B. Ind. vii. 70. 



Perennial ; stem 1-3 ft, erect from a hard rootstock, slender, 

 rigid, smooth, naked below, subtuberous at the base, branching 

 and sparingly leafy above, branches erect, internodes 4-6 in., 

 uppermost a foot long, very slender, nodes glabrous; 1. 6-10 

 in., narrowly linear, finely acuminate, coriaceous, smooth, gla- 

 brous, margins smooth, flat or incurved, base narrow, rounded, 

 setosely ciliate, sheaths shorter than the internodes, margins 

 ciliate, ligule a very short membrane; panicle 6-12 in., very 

 lax, rhachis very slender, smooth, glabrous, branches 2-6 in., 

 alt, distant, suberect, filiform, simple, straight or flexuous ; 

 spikelets 4— | in., subsecund, distant, solitary or binate, longer 

 than their slender pedicels, naked or setulose at the base ; 

 glume I ovate-lanceolate, subaristately acuminate, 3-veined, 

 keel scaberulous, II longer than I by a fourth or third, 

 oblong-lanceolate, 5 -veined, narrowed into a long awn-like 

 truncate point with involute margins, keel scaberulous, III as 

 long as I, narrow, laterally compressed, obtuse 5-7-veined, 

 paleate, male, IV half as long as III, narrowly oblong, 

 acuminate, scaberulous, setulose at the base, faintly 3-veined, 

 3-awned, lateral awns capillary as long as the glume, median 

 as long as the spikelet, column stout, twisted below the 

 knee, slender and recurved above it, paleas of III and IV 

 linear- oblong, acute, keels and narrowly inflexed flaps 

 glabrous. 



Trincomalie, near Fort Ostenburg (Ferguson). 

 India, Tonkin, China, Philippine Is. 



The 1. are pubescent or villous in some Indian states of this plant. 

 PART v. N 



