354 TRIANDRIA DIGYNIA. RotlbceUid. 



2. R. compressa. Linn. sp. pi. ed. WUld. 465. Corom. pi. 

 ii. N. 156. Retz. Ohs. iii. 12. 



Culms climbing, from five to twenty feet high, smooth, 

 compressed; spikes axillary and terminal; rachis jointed \ 

 flowers opposite, hermaphrodite calyces one-flowered. Carol 

 three- valved. 



Beng. Pansheroo. 



Teling. Shervoo, i. e. lake panookoo. 



It is found on the borders of lakes, amongst other roots of 

 long' grass, and brushwood. 



Culms several, creeping or climbing, ramous, compressed, 

 from five to twenty feet long, piped, smooth, about as thick 

 as a common quill, and very hard. Leaves numerous, bi- 

 farious, small for the size of the plant, smooth and soft ; 

 sheaths short, compressed, and smooth. Spikes peduncled, 

 terminal, and from the exterior axills, generally from two to 

 five together, compressed, a little smooth, from two to four 

 inches long. Peduncles articulated at the middle and there 

 bracted, lanceolate, chaffy, bractes also surround their inser- 

 tion. Flou-ers all hermaphrodite, opposite, decussated, lodg- 

 ed in the excavations of the jointed rachis. Calyx one-flow- 

 ered, two-valved, valves nearly equal ; the flowers have al- 

 ternately their valves pointed and somewhat longer than the 

 excavation in the rachis, both cartilaginous; and obtuse, 

 equal to the pits in the rachis, with the exterior one only car- 

 tilaginous. Corol three-valved, valves membranaceous. Nec- 

 tary, two triangular bodies embracing the base ofthe stamens 

 and germ. Stamens three. Styles two; stigmas plumose. 



3. H.exaliala. Linn. sp. pi. ed. Willd. i. 466. Corom. pi. 2. 

 JV. 157. 



Polygamous. Culms erect, hirsute, from six to ten feet high. 

 Spikes solitary, secund. Polygamous flowers on the front 

 with neuter ones on the sides. 



Beng. Bwra-svvooate. 



Teling. Konda panookco. 



