348 THE KINDS OF PLANTS 



AAA. Herbs 



B. Plant climbing by tendrils. 



c. Calyx leafy-lobed 5. Pisum 



CC. Calyx not leafy-lobed. 



D. Style flattened, bearded down 1 side 6. Lathijrus 



DD. Style slender, with a tuft of hairs at apex only, 



or about the upper part 7. Vicia 



BB. Plant not tendril-bearing: leaves compound. 



D. The leaves 3-foliolate (sometimes simple in 

 No. 9). 

 E. Leaves digitately compound. 



F. Stamens diadelphous (9 and 10), and the 



flowers in heads, or spikes 8. Trifolium 



FF. Stamens 10, distinct: flowers in racemes. 9. Baptisia 

 EE. Leaves pinnately compound (terminal 1- 

 stalked, and the stalk jointed), 3 leaflets. 

 F. Flowers small, in a long raceme. 



G. Pod straight, exceeding calyx: flowers 



small, in very slender racemes. .10. Melilotus 

 GG. Pods curved or coiled : fls. small to 



medium, in heads or short spikes. 11. Medicago 

 FF. Flowers medium to large, clustered at the 

 ends of the raceme. 

 G. Keel of the corolla coiled into a spiral. 12. Phaseolus 



GG. Keel curved but not coiled 13. Vigna 



DD. The leaves more than 3-folioliate, or digitately 

 compound. 



E. Digitately compound, 5-7 leaflets 14. Lupinus 



EE Pinnately compound. 



F. Even-pinnately compound: many leaflets: 



flowers yellow 15. Cassia 



FF. Odd-pinnate (sometimes 3 leaflets) of .5-7 



leaflets: flowers purplish or lavender. 16. Apios 



1. WISTARIA. 



Tall shrubby twiner, producing long, dense racemes of showy flowers: 

 leaves pinnate, with several or many leaflets: 2 upper calyx-teeth shorter: 

 standard large and roundish: pod knotty, several-seeded. 



W. Chin^nsis, DC. Wistaria. Popular climber for porches, from 

 China, with large drooping racemes of bright blue (sometimes white) pea- 

 like flowers in spring and summer. 



2. ROBlNIA. Locust. 



Trees or large shrubs with compound, odd-pinnate leaves, with stipules 

 or stipular spines, the base of the leaf-stalk covering the next year's bud: 

 fliwers showy, pea-like, hanging in axillary racemes: calyx 5-cleft: standard 

 of the corolla large, turned back, enclosing side petals in bud. 



