ORDER 40. LEGUMINOUS PLANTS. 



193 



about 10 stamens, monadelphous, diadelphous, or distinct; 

 a single, simple pistil, producing a legume in fruit, and with 

 no albumen in the seeds. 



Fig. 443. Flower of the Pea. Fig. 444. Its petals displayed; v, tho banner; a, a, the winds' 

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



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 



S Flowers regular, in dense heads. Petals valvate in bud. Leaves bipennate . .u 



2 Stamens 10, all distinct s 



2 Stamens 10, all or 9 united 3 



3 Leaves cirrhous (Fig. 96), the rachia ending with a tendril r 



3 Leaves not cirrhous. . . .4 



4 Pod a loment ( 180), f. ., jointed between the seeds . . .0 

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

 5 Erect (or if prostrate, with paltnately 3-foliate leftves)....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 pal mately 5-15-foliate (rarely simple) ...n 



7 Leaves palmately 8-foliate m 



7 Leaves pinnately 3- foliate .... k 



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

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

 9 



