CLASS XV. ORDEll II.] EAl'HANUS. 929 



English Botany,!. 856.— English Flora, vol. iii. p. 226.— Hooker, 

 British Flora, ed. 4. vol. i. p. 257. — Lindley, Synopsis, p. 34. 



«. Flowers white, beautifully pencilled with purple veins. 



^. Flowers yellow, with purple veins. 



y. Flowers sulphur-coloured, with yellow or lilac veins. 



Root slender, tapering. Stem branched and spreading, of a glaucous 

 green, smooth or rough, with sharp reflexed rigid bristles. Leaves 

 lyrate, with channeled footstalks, sinuated, lobed, and toothed, the 

 lateral lobes oblong, the terminal one large, roundish, ovate, dark 

 green above, paler beneath, smooth, or more or less rough, with rigid 

 bristly hairs. Inflorescence terminal sub-corymbose clusters, becoming 

 elongated lax racemes in fruit. Calyx of four oblong scarcely spreading 

 pieces, yellowish, smooth or hairy. Petals four, ovate, tapering into a 

 narrow claw, entire, or waved on the margin. Stamens erect, with 

 awl-shaped filaments and ovate anthers, of two cells. Fruit an erect 

 beaded siliqua, one celled, from one to six or eight seeded, tapering 

 into an awl-shaped style, slender, and terminating in a small obtuse 

 stigma, striated and furrowed, smooth, glaucous, separating at each of 

 the joints, and not opening lengthwise, as is generally the case with 

 other plants. Seeds large, globose. 



Habitat. — Corn fields; frequent. 



Annual ; flowering in June and July. 



2. R. marit'imus, Smith. (Fig. 1076.) Sea Radish. Siliqua of one 

 cell, beaded, deeply furrowed; style slender, awl-shaped; leaves 

 interruptedly lyrate. 



English Botany, t. 1643.— English Flora, vol. iii. p. 226.— Hooker, 

 British Flora, ed. 4. vol. i. p. 257. — Lindley, Synop.sis, p. 34. 



This is a larger, stouter, more robust plant than the last species, 

 with thicker roots and interruptedly lyrate leaves, all serrated, and 

 somewhat sinuated. The pods are more deeply furrowed and jointed ; 

 but in other respects it is the same, and we think a very doubtful 

 distinct species. 



Habitat. — Sea side. Beachy Head, Sussex; Jersey and Guernsey; 

 the Isle of Bute and Mull of Galloway, Scotland; Curren of Larnc, 

 and Hill of Howih, Ireland. 



Biennial ; flowering in June. 



The Wild Radish, or Jointed Charlock, is an extremely common 

 and troublesome weed in corn fields, especially in the North of 

 England ; and the root of R, marilimus is so acrid and pungent, that 

 Dr. Walker considers it preferable to the Horie Radish. The Garden 

 Radish, R. sutiviis, is well known as a favourite salad. Of this there 

 are produced by cultivation many varieties. These are arranged by 

 De Candolle under two heads — 



1. Radicula. The root more or less fleshy, white, pink, or red. 

 «. rotunda. The root somewhat globose. The Naples or 

 Turnip Radish. 



