270 



CRUCIFER^. 



[part II. 



elongated into a somewhat cylindrical silique, 

 which contains several flattish seeds. 



The Brompton Stock {Mathiola incana)^ and 

 the Ten-week Stock {M. amma)^ differ from the 



Wallflower prin- 

 cipally in the 

 shape of the 

 stigma (see Jig. 

 117, a). The 

 petals have also 

 rather longer 

 claws, and hang 



F,G. 1 17.-FLOWER OF THE BrOMPTON StOCK. J^^g^^^ ^g ^^^QW^^ 



at h. The Virginian Stock {Malcomia mari- 

 tima) has a roundish silique, and only one 

 stigma, which ends in a long tapering point. 

 The Candytuft {Iberis umbellata) has a short 

 pod or silHcle, which has the appearance of 

 being cut off at the point, and which contains 

 only one seed in each cell ; and the outer two 

 petals of the flower are somewhat larger than 

 the inner ones. Many other Cruciferous plants 

 might be described, but I think my readers will 

 have pleasure in seeking them out themselves, 

 and examining them, to discover their points of 

 agreement and of difference ; particularly as, 

 though the order is such a very large one, the 

 flowers of all the plants are so much alike, that 

 no one can be in doubt respecting their alliance. 



