Class XVII. Order IV. 261 



Order IV. DECAJVDRM. Ten stamens. 



285. GENISTA. Calyx with the upper lip two 

 toothed, the lower three toothed ; banner oblong, 

 reflected back by the pistil and stamens ; stigma invo- 

 lute ; stamens all united. 



286. LUPINUS. Stamens all united ; anthers alter- 

 nately rounded and oblong ; legume coriaceous, swell- 

 ing at the seeds. 



287. CROTALARIA. Banner cordate, large ; keel 

 acuminate ; filaments connate, with a dorsal fissure ; 

 legume pedicelled, turgid. 



288. PHASEOLUS. Keel with the stamens and 

 style spirally twisted. 



289. LATHYRUS. Style flat, villous above, broader 

 upward ; two upper segments of the calyx shorter. 



290. VICIA. Calyx with two teeth above and three 

 longer straight teeth below ; banner emarginate ; stig- 

 ma transversly bearded on the under side- 



291. TRIFOLIUM. Legume hardly longer than the 

 calyx, falling off entire ; flowers more or less in heads. 



292. LESPEDEZA. Calyx five parted ; keel of the 

 corolla obtuse ; legume lenticulae, unarmed, one 

 seeded. 



293. HEDYSARUM. Calyx five cleft ; keel of the 

 corolla obtuse ; loment jointed, the joints compressed 

 and one seeded. 



294. GLYCINE. Calyx two lipped ; keel of the 

 corolla turning back the banner at the tip ; legume 

 many seeded. 



295. ROBINIA. Calyx four cleft, the upper segment 

 two parted ; banner roundish ; legume compressed 5 

 elongated. 



