326 TRIANI31UA DIGYNIA. Jipluda. 



emerging. Leaves linear, smoolli. Spikes three-fold. Exterioj' 

 valve of the calyces vvitii a long, waved, ensiforni point ; all the co- 

 rollets two-valved, and awnless. 



A native of Bengal, where it is found floating on pools of sweet 

 water, and blossoming about the close of the rauis in October. 



Culms appear to be pereimial, a fathom or two long, jointed, as thick 

 ns the little tinger, floating. — Leaves linear, acute, from one to two 

 feet long, margins backwardly hispid, in other respects smooth. — 

 Spikes terminal, three in the only plant that has yet blossomed in 

 this Garden, each about six or eight inches long, a little compressed ; 

 when the flowers expand about noon they appear like Chevaux de 

 frise, at other times they appear smooth. — Flozoers n\ pairs, one ses- 

 sile, containing one hermaphrodite, and one male floret, the other 

 pedicelled and neuter, or with two male florets. — Cali/x two-valved; 

 exterior valve rigid, with hispid margins and long, flat, waved, his- 

 pid-margined, ensii'orm points: inner valve boat-shaped with a flat 

 liisj)id keel. — Coroh of each floret two-valved. 



APLUDA. 



Polygamous. Involucre one-valved, two-flowered, one-sessile, the 

 other pedicelled with a pedicelled neuter rudiment. Calyces two- 

 flowered, tl'.e sessile one polygamous, the pedicelled one the same, 

 or with male only. Co/'o/s two-valved. 



1. A. aristata. Linn. Sp. PL ed. Willd. iv. 938. 



Perennial, creeping, or scandent. Leaves lanceolate. Herma- 

 phrodite flower awned. 



Beng. Goroma. 



Teliiig. Pootstrangah*. 



Is commoidy found in hedges, under the shade of trees and such 

 like places. 



Culms creeping, or climbing, as thick as a crow-quill, jomted, co- 

 loured, the lower part naked, inwardly spongy ; from the joints 

 spring, erect, ramous, flower-bearing branches of from one to seven 



