DIADELPHIA. DECANDRIA, 121 



about 15 lines long, straight and compressed, but convex, 

 hooked at the point. Flowering' in July. Flowernearly 

 white, the vexillum rosaceously striated. 

 A genus principally indigenous to Europe and Siberia. 



524. MEDICAGO. L. (Medick.) 



Legume compressed, cochleate. Carina of the 

 corolla deflected from the vexillum. 



Herbaceous or rarely shrubby plants; leaves ternate; 

 stipules small, growing to the base of the petiole; pedun- 

 cles axillary and terminal, 1-flowered, or many-flowered, 

 flowers spiked or conglomerate. 



Species. 1. M. lupiiUna. 2. intertexta. Introduced 

 and scarcely naturalized. 



A genus of 40 species, exclusively European. Legume 

 variously contorted, smooth or tuberculate, often imita- 

 ting an univalve spiral shell. 



Vol. u 



