CLXXIII. GRAMINEJE. (J. D. Hooker.) 151 



Cent. ii. 7 ; Schreb. Bexchr. Grtes. 93. Lamk. III. t. 841, f. 1 ; Steud. Syn. 

 Gram. 403 ; Roxb. Fl. Ind. i. 324 ; Dalz. & Gibs. Bomb. Fl. 303 ; Thw. 

 jEnum. PL Zeijl. 364 ; Trim. Cat. Ceyl. PI. 108 ; Aitchis. Cat. Panjab PI. 

 174 ; Duthie 'Fodd. Grass. N. Ind. 44, t. 29. A. G-ryllus, Beauv. 'Agrost. 

 133 (cf. corrigend. in Suppl.) t. 23, f. 5. 



Var. aristata proper ; spathe rather shorter than its spike, sessile spikelet | in., 

 bulbous base -^--^s i n< > S^ I glabrous nerves scabrid, terminal spikelet = sessile, 

 pedicelled spikelet minute. A. inicrostachya, Nees in Nov. Act. Nat. Cur. xix. 

 Suppl. i. (1843) 194. A. scabra, Anderss. I. c. 179. Ischseuium involucratum, 

 Hb. Russ. in Wall. Cat. n. 8794 A. 



Var. ciliata ; tali, robust, fig. spathes glabrous or hairy, spathe half as long as 

 its spike, sessile spikelet ?-~j in., bulbous base T V-Yo ^ n> > &! ' au( * racu i 8 puberulous, 

 spathe glabrous or with tubercle -based hairs. ' A. ciliata, Anderss. I, c. 177-179. 

 " Hardly a distinct variety," Hackel. 



Var. villosula, ; spathe half as long as its spike, sessile spikelet $ i n -> bulbous 

 base of rachis -j-L in., gl. I and pedicel scabrous-pubescent, terminal spikelet shorter 

 than the sessile, pedicelled spikelet T \ in. ciliate. A. communis, Nees Sf Arn. in 

 Nov. Act. 1. c. 194 ; Andtrss. I. c. 177, t. 5, 2. A. villosa, Schreb. Beschr. Grces. 

 98 ?_ Wight Cat. n. 1713. 



Var. rostrata ; spike strongly incurved far exserted beyond the spathe, spike- 

 let $ in., callus |~i in. A. rostrata, Arn. & Nees I c. 194. Wight Cat. n. 1714. 

 Apluda, Wall. Cat. n. 8762. 



45. VOSSZA, Wall. & Griff. 



A gigantic floating grass. Spikes terminal, solitary or 2- (rarely 3-6-) 

 nate, stout ; rachis narrow, compressed, tiexuous, jointed. Spikelets 2-9d., 

 imbricate, 2-nate, longer than the subexcavate joints, one sessile by a 

 very broad callus ; the other smaller pedicelled. Glumes 4, I very broad, 

 ovate, flattened, coriaceous, smooth, narrowed into a long rigid green tail ; 

 II chartaceous, ovate-lanceolate, acute, 3-nerved, keeled above ; III 

 hyaline, 2-nerved, paleate, male; IV hyaline, oblong, 3-nerved, tip ciliate, 

 palea 2-nerved. Lodicules large, toothed. Anthers b, long. Styles dis- 

 tinct, stigmas short. Grain unknown. 



V. procera, Wall. & Griff, in Joum. As. Soc. Beng. v. (1836) 573, 

 t. 23; Wall. Cat. n. 8878 ; Grant in Trans. Linn. Soc. xxix. 175, t. 116; 

 Hack. Monogr. Andrap. 270. V. cuspidata, Griff. Notul. iii. Index p. xii., 

 Ic. PI. Asiat. Index p. v. t. 153. Ischsenmm cu^pidatum, Roscb. Fl. Iwd. i, 

 324 ; Kunth Enum. PI. i. 516 ; Griff. Notul. iii. 70. I. ensiforme, Herb. 

 Ham. ex Wall. Cat. I. c. 



Jheels of BENGAL, SILHET and ASSAM. DISTEIB. Afr. trop. 



Stem 6-12 ft., spongy, as thick as the thumb, rooting at the lower uocies* 

 Leaves 1-2 tt., linear, acuminate, hispidulous, midrib stout ; sheath large ; ligule^ 

 densely ciliate, Spikes 6-8 in., nearly terete ; rachis narrower than the gls M margins, 

 ciliolate j joints in., and pedicels cupped at the tip. tipikelets l-l in. with the 

 spreading ciliolate tail of gl. I, green, callus annular. Hardly generic-ally differeut 

 from Ischtemum. 



46. ROTTBOEZiZiIA, Linn.f. 



Tall, annual or perennial grasses. Spikes few or many, subsolitary or 

 panicled rarely racemose or panicled ; racbis usually fragile, joints 

 usually excavate at the tip. Spikelets 2- rarely 3-nate, one (rarely two) 



