70 ENGLISH BOTANY. 
Section ].—EU-ALISMA. Coss. 
Carpels flattened, with their sides wholly contiguous, arranged in 
1 row on a flattened or depressed receptacle. 
SPECIES L-ALISMA PLANTAGO. Linn. 
Pirates MCCCCXXXVITI. MCCCCXXXVIII. 
Billot, F\. Gall. et Germ. Exsice. No, 2744. 4 
Leaves with the lamina ovate and subcordate or lanceolate and 
attenuated at the base, opaque, rising out of the water, rarely all 
submerged and eer pbraie oP ee aad translucent, or some of them 
oblong- slliptical and floating; the early ones sometimes all submerged 
and translucent ; the Senile or floating leaves with 5 to 7 ribs. Scape 
panicled, with whorled branches; the lower branches whorled or 
terminating in umbels. Flowers very numerous. Achenes in 1 row, 
in depressed roundish-trigonous umbilicate heads on a flattened re- 
ceptacle, numerous, flattened, obovate, rounded at the apex, without 
a beak, with 1 or 2 furrows on the back; style situated on the upper 
margin, considerably below the apex. : 
Var, a, genuinum. 
Prare MCCCCXXXVII. 
Reich. Ic. Fl. Germ. et Helv. Vol. VII. Tab. LVII. Fig. 100. 
A, Plantago, Bor. Fl. du Centre de la Fr. ed. iii. Vol. I. p. 594. 
Aerial leaves ovate, acuminate, cordate or subcordate at the base. 
Sepals oblong-ovate. Styles twice as long as the ovary. 
Var. 2, lanceolatum. 
Pirate MCCCCXXXVIII. 
Reich. Ic. Fl. Germ. et Hely. Vol. VI. Tab. LVII. Fig. 101. 
A. lanceolatum, With. Jord. in Schulz & Billot, Archives, p. 322. Bor. Fl. du Centre 
de la Fr. ed. iii. Vol. IL. p. 595. 
Aerial leaves lanceolate, attenuated at each end. Sepals oval. 
Styles as long as the ovary. 
In still water, and by the sides of ponds, ditches, &c. Common, 
and generally distributed, except in the extreme north of Scotland. 
Var. 6 apparently less common. 
England, Scotland, Ireland. Perennial. Summer, Autumn. 
Rootstock a corm preducing numerous stalked radical leaves, gene- 
