70 ENGLISH BOTANY. 



Section I.— EU-ALISMA. Coss. 



Carpels flattened, with their sides wholly contiguous, arranged in 

 1 row on a flattened or depressed receptacle. 



SPECIES I.-ALIS MA PLANTAGO. Linn. 

 Plates MCCCCXXXVII. MCGCCXXXVIII, 

 Billot, Fl. Gall, et Germ. Exsicc. No. 2744. 



"Leaves with the lamina ovate and subcordate or lanceolate and 

 attenuated at the base, opaque, rising out of the water, rarely all 

 hiubmerged and linear-strapshaped and translucent, or some of them 

 oblong-ellii)tical and floating ; the early ones sometimes all submerged 

 and translucent ; the aerial 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. 



Plate MCCCCXXXVII. 



Reich. Ic. M. Germ, et Helv. Vol. VH. Tab. LVH. Fig. 100. 

 A. Plantago, Bor. Fl. du Centre de la Fr. ed. iii. Vol. II. p. 594. 



Aerial leaves ovate, acuminate, cordate or subcordate at the base. 

 Sepals oblong-ovate. Styles twice as long as the ovary. 



Var. 3, lanceolatum. 



Plate MCCCCXXXVm. 



Beicli. Ic. Fl. Germ, et Helv. Vol. VH. Tab. LVH. Fig. 101. 



A. lanceolatum, With. Jord. in Schidz & Billot, Archives, p. 322. Bor. Fl. du Centre 

 de la Fr. ed. iii. Vol. II. p. 595. 



Aerial leaves lanceolate, attenuated at each end. Sepals oval. 

 Styles as long as the ovary. 



In stiU water, and by the sides of ponds, ditches, &c. Common, 

 and generally distributed, except in the extreme north of Scotland. 

 Var. 3 apparently less common. 



England, Scotland, Ireland. Perennial. Summer, Autumn. 



Eootstock a corm producing numerous stalked radical leaves, gene- 



