OnDER 40.— LEGUMINOUS PLANTS. 



187 



about 10 stajnens, monadelplious, ditidelplious, or distinct; 

 a single, simple 2^istil, producing a legume in fruit, and with 

 no albumen in the seeds. 



445 



Fig. 443. Flower of the Pea. Fig. 444. Its petals displayed; v, the banner; 

 c, c, the 2 keel petals. Fig. 445. A legume (pea-pod). 



the wings, 



Analysis of the Genera. 



% Flowers papilionaceous (§ 89). Upper petal (banner) covering the rest in bud. . .2 



§ Flowers nearly regular, or upper petal covered by the rest in bud t 



§ Flowers regular, in dense heads. Petals valvate in bud. Leaves bipepoate n 



2 Stamens 10, all distinct s 



2 Stamens 10, all or 9 united 3 



3 Leaves cirrhous {Fig. 96), the rachis ending with a tendril. . .r 



3 Leaves not cirrhous 4 



4 Pod a loment (§ ISO), i. e., jointed between the seeds . . .6 



4 Pod a legume, 1, 2, or oo seeded, not in joints 5 



5 Erect (or if prostrate, with palmatcly 3-foliute leaves) 7 



5 Trailing or twining vines, leaves pinnately compound. . . .9 



6 Flowers yellow q 



6 Flowers cyanic (not yellow) p 



7 Leaves simple, with yellow flowers o 



7 Leaves palmately o-15-foliate (rarely simple) . .u 



7 Leaves palmately 3-foliate m 



7 Leaves pinnately 3-foliate k 



7 Leaves pinnate with no odd leaflet, 15-25 pairs. ..h 

 7 Leaves pinnate with au odd leaflet. . . .8 



