324 TRIANDRIA DIGYNIA,. Apluda. 
8. 1. cuspidatum. R. 
Floating on sweet water with a portion of the tops of the 
plant emerging. Leaves linear, smooth. Spikes three-fold. 
Exterior valve of the calyces with a long, waved, ensiform 
point ; all the corollets 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 rains in 
October, _ 
_ Culms appear. to “a perennial, a fathom or two long, Soil 
ed as thick as the little finger, floating. Leaves linear, acute, 
from one to two feet long, margins backwardly hispid, in 
other respects smooth. Spikesterminal, 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. Flowers in pairs, one sessile, contain- 
ing one hermaphrodite, and one male floret, the other pedicel- 
led and neuter, or with two male florets. Calyx two-valved; 
exterior valve rigid, with hispid margins and long, flat, wav- 
ed, hispid-margined, ensiform points ; «nner salve boat-shap- 
ed with a flat hispid keel. Corods of each floret two-valved. 
APLUDA. 
__ Polygamous. Involucre one-valved, teo-tlowered; one ses- 
sile, the other pedicelled « with a pedicelled neuter rudiment. 
Calyces two-fiowered, the sessile one polygamous, the pedi- 
celled one the same, or with male only. Corols two-valved. 
1. A. aristata, Linn. sp, pl. ed. Willd. iv. 938. 
Perennial, creeping, or scandent, Leaves lanceolate. Her- 
maphrodite flower avied 
_ Beng. Goroma. 
