i 



TETRADYNAMIA— SILIQUOSA. Raphanus. 225 



Common throughout the isle of Thanet, particularly about Rams- 

 gate. Mr. Dillivyn. Below Bristol. Mr. E. Forster. 

 Annual. August, September. 



Root tapering, small. Stem branching from the bottom, about a 

 span high, spreading, leafy in the lower part, clothed all over 

 with reflexed bristly hairs. Leaves usually quite smooth, of a 

 lightish green, not glaucous, varying much in form, either 

 broadly lanceolate inclining to obovate, or imperfectly lyrate j 

 deeply serrated, or unequally sinuated ; always acute, not 

 rounded, at the extremity, and tapering at the base into afoot- 

 stalk. Fl. lemon-coloured, smaller and paler than the last, in 

 dense abrupt coiymbose clusters, greatly elongated after flower- 

 ing. Cal. moderately spreading from the bottom, a little hairy. 

 Pet. obovate, somewhat spreading. Pods on distant spi'eading . 

 stalks of various lengths, much like those of S. teniiifoUa, but 

 less decidedly erect, and the seerfs less accurately double-ranked. 

 Style and stigma as in that species. The calyx in both spreads 

 less than the character of a Sinapis requires. I have Gouan's 

 plant from himself. It is not constant enough in the deeper di- 

 visions of its leaves to be mai'ked as a variety. 



344. RAPHANUS. Radish. 



Linn. Gen. 343. Juss. 238. Fl. Br. 723. Comp. ed. 4. \09. Br. 

 in Jit. H.Kew.v. 4. 129. DeCand. Syst.v. 2. 662. Lam.t.566. 

 Raphanistrum. Tourn. t. 1 15. Gcertn. 1. 143. 



Cal. erect ; leaves oblong, parallel, converging, deciduous ; 

 2 of them slightly prominent at the base. Pet. obovate, 

 or inversely heart-shaped, spreading ; claws linear, erect. 

 Filam. awl-shaped, simple, erect. Anth. oblong, a little 

 spreading. Glands 4 ; 2 at the inside of the shorter fila- 

 ments ; 2 at the outside of the longer. Germ, cylindrical, 

 tapering. Style awl-shaped. Stigma capitate, small, en- 

 tire. Pod oblong, imperfectly cylindrical, tapering up- 

 ward, irregularly tumid, as if more or less jointed, coria- 

 ceous, not bursting, of 2 incomplete cells, the membra- 

 nous partition often obliterated. Seeds pendulous, glo- 

 bose, forming a single row ; cotyledons folded, incum- 

 bent, their doubled edges meeting the radicle. 



Upright, branched, spreading, smooth or bristly herbs,' 

 their lower leaves lyrate. Fl. large, yellow, white, or 

 purplish, often veiny. Pods internally spongy, very va- 

 riable as to their jointed appearance, in the same species ; 

 so that even Prof. DeCandoIIe preserves the Linnaean 

 genus entire, in, opposition to the opinion of Tournefort 

 and Gaertner, who founded their genus Raphanistrum on 

 the more decidedly jointed pods, breaking transversely, 



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