478 



(1) L. TEisuxcA. (Linn.j 

 Ident. Linn. spec. 1376. 



L. cruciata, Boxb.Jlor. Ind. III. p. 566. 



Spec. Cttab,. Fronds very frequent, cruciately joined together, 

 stalked, oblong-lanceolate, denticulate towards the apex, thin, sub- 

 mersed, floriferous ones floating : radicles solitary. 



Bengal, under the surface of water in tanks in extensive inter- 

 woven masses. 



(2) L. GLOBOSA. (Roxb.) 



Ident. Eoxb. flor Ind. III. p. 565. 



Spec. Ghae. Tronds solitary or occasionally joined together by 

 pairs, globular, without roots, each the size almost, of a grain of 

 sand. 



Bengal. Bombay. Porms a green scum on the surface of stag- 

 nant water. 



GElSroS II. PISTIA. 



Polyandria Ilexandvia. Sex: Systs 



Gen. Chae. Spathe tubular at the base, connate with the spadix, 

 limh spreading, increased by a process wrapping the spadix above : 

 spadix iuterruptedly androgynous, female at the base, male at the 

 free apex : anthers 3 — 8 adnata to the thickened apex of the spadix, 

 sub-globose, dehiscing by a transverse furrow : ovary 1, obliquely 

 seated at the base of the adnate spadix, 1 -celled : ovules many, 

 sub-horizontal from a parietal placenta near the base, orthotropal : 

 style terminal, thick : stigma sub-cyathiform : berry 1-celled, many 

 or by abortion few-seeded: seeds pyriform, smooth: testa coriaceous, 

 thick : embryo oylindric, enclosed in the apex of albumen : radicle 

 opposite the hilum. — ^Aquatic herbs, free, floating, flagelliferous : 

 roots fibrous : leaves sessile, expanding like the petals of a rose, 

 quite entire, nerved : spadix axillary, solitary, supported by a short 

 scape. 



(1) P. sTEATioiEs. (Linn.) 



Ident. Linn. Zeyl. No. 322.— Eoxb. flor. Ind. III. p. 131. 



JEkgrwo. Eumph. Amb. vi. t. 74, fig. 2. — Eheede Mai. v- t. 32 

 —Eoxb. Cor. III. t. 268. 



Spec. Chap.. Leaves roundly obcordate, waved at the margin : 

 nerves lamelliform, confluent in a basilar truncated area : flowers 

 pale yellow. 



Malabar. Travancore. Coromandel. Common in tanks. Plowering 

 nearly all the year. 



