248 triandria digynia. Anthistiria. 



2. A. polystachya. R. 



Culms numerous, sub-erect. Leaves taper from their sub- 

 ciliate base. Accessary florets three-valved, male, exterior 

 valves of the sessile four, papillose, ciliate near the apex. 



A native of Bengal, and with the other species which are 

 natives of the same country, appears at the close of the rains, 

 in October and November. 



Culmsmmiy, annual, erect, or ascending, smooth, from one 

 to two feet high. Leaves about the length of the joints of 

 the culm, taper from the base, and there sometimes sub-cili- 

 ate. Panicles slender, erect, or nearly so, composed of a few 

 alternate, axillary branches. Involucres longer than the flow- 

 ers, smooth, sub-aristate. 



Hermaphrodite Flowers breaded at the base. Calyx 

 two-valved, both hard, a little hairy awn on the opposite side. 

 Corol one-valved, with a long, strong, hairy awn on the oppo- 

 site side. 



Accessary Florets six, all male. Calyces two-valved, 

 the exterior one of the four sessile florets papillose, ciliate 

 near the apex. Corol of one transparent valve. Stamens 

 three. Pistil none. 



3. A. scandens. R. 



Perennial, ramous, scandent, geniculate, emitting roots 

 from the joints. Floral leaves with the base ciliate. Pani- 

 cles copious, shaggy. Involucres smooth. Accessary flo- 

 rets two-valved, neuter ; exterior valve of the sessile four, pa- 

 pillose, ciliate near the apex. 



A native of Bengal ; flowers during the cool season. 



Root perennial. Culms scandent, running to an extent of 

 many feet, smooth, ramous, jointed, and coloured ; from the 

 joints numerous roots issue, and enter the ground if not too 

 far removed from it. Leaves ensiform, the floral ones much 

 shorter, and ciliate at the base. Panicle terminal, composed 

 of erect ramifications of numerous, rather remote fascicles of 

 axillary, short-pedicelled umbellets, each of which is furnish- 



