32 On the different Species, fyc. of the Genus Brassica. 



summer Navette, and winter Navette, naturally leaves great 

 doubts in the mind, as to their respective results. I must 

 own that I felt for a long time much uncertainty in deciding 

 whether the Colsa and the true Navette were two species, or 

 only two varieties of the same species, their differences being 

 of so doubtful a nature ; but the unanimous agreement of 

 cultivators on this point, and my own observation on the 

 constancy of their distinctive characters, however slight, have 

 determined me to adopt the first opinion. We must observe, 

 lastly, that the plant indicated by Duchesne and Lamarck * 

 appears to be our Navette, the English Coleseed. 



Second Race. Brassica Napus esculenta. 

 Navet. French Turnip. 

 The Navet, properly so called, differs from the Navette in 

 the same manner as the Rave from the Ravette ; that is, by 

 its fleshy root being thicker than the stalk, and forming a 

 nearly oval tuber ; we must neither confound it with the 

 Brassica Rapa oblonga, from which it differs by its smooth 

 and glaucous leaves, nor with the Chou-navet, differing also 

 from this by its spreading seed-pod and bare leaves, nor 

 with the Chou-rave, in which the swell in the root is above 

 instead of being below the origin of the stem. The true 

 Navet,f even surpasses in the sweetness of its flavour the 

 sweet Turnip, and has not any of its acrid particles. We 

 distinguish three varieties of Navet by their colour : 

 the White, alba, which is the most common ; the Yellow, 



* Lamarck Encyclopedic Botanique, Vol. i. page 742. 



f In the early period of the existence of the Horticultural Society (see Trans- 

 actions, Vol. i. page 86), Mr. Dickson brought this excellent esculent into the 

 notice of the English gardeners; it is still, however, but seldom cultivated. Sec. 



