CLASS XV. ORDER 1.) LEPIDIUM. 879 



while membranous margin. Petals mostly wanting, small, obovate, 

 white. Stamens mostly two, sometimes four. Fruit a smooth roundish 

 ovate siliquu, notched at the apex with the persistent short conical 

 style between the lobes, which appears like a third tooth, two celled, 

 each cell with a single brown ovate pendulous seed, with linear acute 

 cotyledons. 



Habitat. Waste rubbishy places near the sea; not common. 



Annual; flowering in June. 



4. L. campes'tre, Brown. (Fig. 1013.) Common Mithridate Pepper- 

 wort, or Cow Cress. Leaves clothed with hoary pubescence, the lower 

 oblong, entire, petiolated, the upper sessile, toothed, arrow-shaped, 

 amplexicaul ; siliqua rough, with depressed scales, ovate, notched ; 

 keel winged; style about as long as the notch. 



English Botany, t. 1385 English Flora, vol. iii. p. 166. Hooker, 

 British Flora, ed. 4. vol. i. p. 248. Lindley, Synopsis, p. 31. 



Root small, tapering, branched. Stem erect, about a foot high, 

 simple, branched above, round, and like the rest of the plant clothed 

 more or less thickly with close somewhat hoary pubescence. Leaves 

 numerous, a hoary green, the lower entire, oblonj- ovate, tapering into 

 a footstalk of greater or less length, the upper sessile, lanceolate, 

 arrow-shaped, embracing the stem, the lobes lanceolate, the margin 

 more or less waved and toothed. Inflorescence terminal and lateral 

 many flowered paniculated racemes. Floivers small, white. Calyx 

 of four equal oblong ovate pale segments. Petals four, scarcely 

 longer than the calyx, obovate, tapering into a claw, white. Fruit an 

 ovate siliqua, on a round slender slightly pubescent pedicle, swollen on 

 the lower side, somewhat cupped above, the keel winged, the apex 

 notched. Style slender, scarcely longer than the lobes of the notch, 

 two celled, each cell containing a single pendulous dark brown ovate 

 seed, the valves more or less rough, with minute depressed pale scales. 



Habitat Cultivated fields; common. 



Annual; flowering in July. 



5. L. Smith'ii, Hooker. (Fig. 1014.) Smooth fruited Field Pepper- 

 wort. Leaves clothed with pubescence, the lower oblong, entire, 

 petiolated, the upper sessile, arrow-shaped, toothed, amplexicaul ; 

 siliqua smooth, ovate, notched; keel winged; style much longer than 

 the notch. 



Hooker, British Flora, ed. 4. vol. i. p. 248. Lindley, Synopsis, p. 

 31. L. hirtum. English Flora, vol. iii. p. 167. Thlaspi hirtum, 

 Linn. English Botany, t. 1803. 



Root tapering. Stems several, simple or branched, round, leafy, 

 clothed with soft pubescence. Leaves a glaucous green, paler beneath, 

 and clothed more or less thickly with soft pubescence, the lower ones 

 oblong, entire, or unequally lobed or toothed, tapering into a long 

 slender footstalk, the upper sessile, oblong lanceolate, with lanceolate 



