DIADELPHlA. 445 



sieu : but the^vhole requires to be well re- 

 considered ; for, if possible, so great a laxity 

 of definition, with such glaring exceptions, 

 should not disgrace any system. 



***** Legume composed of single-vahed 

 joints, which are rarely solitary. Hedysa- 

 rum 9 t. 96, is the most important genus of 

 this section, and is known by its obtuse or 

 rectangular keel. Tlippocrepis, t. 31; Omi- 

 thopus 9 t. 369 ; ^nd Scorpiurus? known in 

 gardens by the name of Caterpillar, from its 

 worm-like pod, are further examples. Smiihia, 

 Ait. Hort. Ken\ t. 13, is remarkable for 

 having the joints of the legume connected by 

 means of the style, as by a thread ; the sta- 

 mens in 2 eqiial divisions, with 5 anthers to 

 each ; and a two-lipped calyx. Hedysarurn 

 ve$pertilionis 9 Jacq. Ic. Rar. f. 566, in some 

 points approaches this genus, and more cer- 

 tain species are possibly latent among the 

 numerous unsettled papilionaceous plants of 

 India. 



****** Legume of one cell, with several 

 seeds. To this belong the genu3 Melilotus r 

 if separated from TrifoUum; the Indigofera r 



