GYMNOCARPS. 



117 



tached to one of its sutures ; as the bean and pea. Fig. 70, 



a, represents a legume, the fruit of the genus Astragalus; b 



represents the same cut transversely in order to show the cells. 



Fig. 70. 



Fig. 71. 



Silique, a bivalved pericarp, having 

 its seeds attached to each valve ; as the 

 pods of cabbage and mustard. Fig. 71,. 

 a, represents a silique, the fruit of the 

 SINAPIS alba (white mustard); this is 

 said to be rostrate, terminating like a 

 bird's beak ; b represents a globular seed ; 

 c the same magnified ; d shows the seed 

 dividing, and the embryo making its ap- 

 pearance. The sillicula is a variety of 

 the same genus. 



Pyxides (from puxis, a box), having its 

 capsule open horizontally, like a box ; as the 

 bachelor's button (GOMPHRENA globosa). 

 This genus may be illustrated by a fruit of 

 the genus Lecyihis (Fig. 72, a) ; b represents 

 the lid of the fruit. 



ORDER 3d. Dieresilia (from diaresis, division), contains sim- 

 ple fruits, which divide into many parts when ripe. 



The Silique The Pyxides Order Dieresilia. 



