26 On the different Species, $c. of the Genus Brassica. 



Brassica campestris Napo-brassica, Turnip-rooted Cabbage 

 just mentioned ; the latter, the Brassica Napus, the fourth 

 species of Brassica, the true Turnip, of which I shall speak 

 hereafter. 



Third Species. BRASSICA RAPA,* 

 Rave ou Navet. Turnip. 

 Is said to be found in a wild state in various parts of 

 Europe, but the facility with which its seeds can be trans- 

 ported from the place where it is cultivated must leave its 

 native habitat a matter of doubt. This species, first pointed 

 out by Lamarck, in the Encyclopedic Botanique, and 

 called Brassica asperifolia, comprehended several varieties of 

 the Brassica campestris ; it was afterwards described by 

 Poiret, in the same work,t by the name of Sinajris tuber osa, 

 which, strictly speaking, is applicable to one only of its vari- 

 eties ; for this reason, as well as to follow the older name, I 

 have thought proper to preserve the name of Brassica Rapa, 

 introduced by Linnaeus. § This species is distinguished from 

 the preceding by its foliage not being glaucous, but of a decid- 

 ed green, like the Radishes, which are called in French Petites 

 Raves ; secondly, by the inferior or radical leaves being per- 

 manently covered with stiff hairs : in every respect the young 

 plant bears more resemblance to a species of Raphanus, than 

 to one of the genus Brassica, and as it differs again from Bras- 



* Smith's Flora Britannica, Vol. ii. page 719. English Botany, plate 2176- 

 Martyn Flora Rustica, Vol. ii. plates 49 and 50. 



f Lamarck, Encyclopedic Botanique, Vol. i. page 746, 

 X Poiret, Encyclopedic Botanique, Vol. iv. page 346. 

 § Linn. Species Plantarum, edit. 2. Vol. ii. page 931 



