310 ALISMACEA. [ SAGITTARIA. 
1. S. sagittifolia, Linn. Sp. Pl. 993; Roxb. Fl. Ind. wm, 645 ; 
F. B. I. vi, 561; Watt E. D.; Prawn Beng. Pl. 1120 ; Cooke Fl. 
Bomb. ii, 834. 8. hastata, Don Prod. 22. Buchenaw in Engl. 
and Prantl. Pflanzenf. Vol. 2, p. 231, fig. 176. 
Rhizome thick, stoloniferous. Leaves radical, 2-8 in. long, very vari- 
able, the first leaves of the young plants slender and very acute, 
the next one or two simply cordate-oblong, the rest sagittate, acute, 
smooth, with more or less divergent basal lobes which are 2-3-nerved 
and narrower than the upper part of the blade, which latter is oblong 
or lanceolate, 5-nerved, the nerves extending from the top of petiole 
to the apex of the leaf; petioles sometimes reaching nearly 2 ft, 
long, 3-gonous. Scape 6-18 in. long. Flowers 4-2 in. diam., white, 
often with a purple claw, in 3-5 whorls along the scape, with usually 
8 flowers in each whorl, the lower whorls female, the upper male, 
with longer pedicels; hermaphrodite flowers occur, but rarely ; 
bracts narrowly ovate, membranous. Sepals ovate, acute, much 
smaller than the petals. Petals large, broadly obovate. Filaments 
in male flowers many; anthers sagittate. Achenes obliquely obovate, 
flattened, apiculate, winged, the wings broad, entire or subcrenate. 
Ajmir (Lourie); Agra (Monro) ; Moradabad (7. Thomson) ; N. Oudh, 
Pilibhit and Gorakhpur (Duthie); Banda (Edgew.). Disrrr.: In 
the Swat Valley and other localities of the N. W. Frontier Province. 
Plains of Punjab and Bengal; extending to Europe, N. Asia and 
N. America. The tuberous rhizomes are eaten in China, and the 
plant is often cultivated as a food-plant. 
9, §. guayanensis, H. B. K.; F. B. I. vi, 561. Prain Beng. 
Pl, 1120. 8S. cordifolia, Roxb. wi, 647. 8. Lappula, Don Prod, 22. 
Petioles, scapes and pedicels often more or less hairy. Leaves mem 
branous, floating, 1-2 in. long, broadly ovate, deeply cordate, obtuse ; 
lobes broad, acute or obtuse ; sinus broad or narrow ; nerves radia- 
ting, obscure ; petioles long or short. Scape 6-18 in. long. Flowers 
2 in. in diam., white, in approximate irregular whorls; pedicels 
short, very stout ; flowers of lower whorls usually ternate, 2-sexual, 
9-12-androus; of the upper numerous and male and 6-10-androus. 
Petals obovate, erose.. Anthers cordate at base. Achenes many, 
flat, surrounded by a broad toothed wing. 
Moradabad (T. Thomson); D. “Dun (P. W. M.); Banda (Edgew.). 
Distris.: from the Punjab Plain to Bengal and Burma, but not in 
Ceylon ; found in the Pen. and Malay Islands, also in China and in 
Trop. Australia. 
