I.] 



CRUCIFER^E. 



125 



All Crucifers are wholesome, and many are anti- 

 scorbutic. Amongst those in household use are Tur- 

 nips, Radish (root) ; , Kohl-rabbi (stem) ; Horse-radish 

 (rhizome) ; Mustard, Cress, Cabbage, Water-cress, Sea- 

 Kale (herbage) ; Cauliflower, Broccoli both varieties of 

 the Cabbage (inflorescence) ; Mustard (seeds). 



Valuable oil is expressed from the seeds of Rape and 

 Colza (Brassica campestris and its varieties). 



Woad, a blue dye obtained from Dyer's Woad, is 

 stated to have been used by the ancient Britons to paint 

 their persons. 



7. Natural Order Resedaceas. The Mignonette 

 Family. 



DISTRIBUTION. Chiefly confined to countries border- 

 ing on the Mediterranean. Absent from America. One 

 British genus, species 3. 



Herbs. Petals 4-6, palmatifid. Stamens indefinite, upon 

 a lateral disk. Placentas parietal. 



Type Sweet Mignonette (Reseda odoratd). 



An herbaceous (garden) annual, with alternate entire 

 or lobate exstipulate leaves, and terminal racemes of 

 small slightly irregular flowers. 



OBSERVE the multifid limb of the petals, attached to a 

 broad claw : the posticous, unilateral, hypogynous disk ; 



