THE TURNIP CROP. 



289 



to each other, cross-like. The calyx e is made up of four 

 sepals imbricated; the stamens are six in number. There 

 are numerous species of the genus Brassica, but the turnip 

 plants interesting to the farmer are ranged under two : 

 (1.) Brassica campestris swede turnip (to which also be- 

 longs the smooth-leaved summer rape and the colza); (2.) 

 Brassica rapa common turnip (to which also belongs 

 the rough -leaved summer rape). To these we should 

 perhaps add a third, the Brassica caulo rapa, to which 

 the varieties of kohl-rabi. To the other species 



belong all 



Fig. 9. 



of Brassica belong all the varieties of cabbage and 

 winter-rape and coleseed. We have already said, what 

 was certainly almost unnecessary to be said, so well and 

 universally is it known, that of all the varieties of 

 turnip the swede is the most valuable to the farmer. 

 Of the history of the introduction of this variety into 

 Great Britain much has been written, but much that is 

 conjectural. 



90. A correspondent of an agricultural paper, to whose 

 industry we owe many interesting facts connected with the 

 history of the swede, claims, for a Mr. Eeynolds of Adisham, 



