94 FABACEAE. 



calyx-lobes nearly as long as the lower ones, like the lateral ones of the lower 

 lip, setaceous-subulate: blade of the standard 21-25 mm. wide: seeds less than 

 3 mm. long. — Pinelands. — F. K. (Bah., Cuba, Aiit.) — Butterfly-pea. 



22. CLITORIA L. Vines or diffuse plants. Leaflets 3 or several. 

 Eacemes or panicles 1-several-flowered. Calyx 2-lipped, the lobes of the upper 

 lip scarcely united, resembling the lateral lobes of the lower lip, but often 

 shorter. Corolla blue, purple, red, or white : standard erect, the blade obovate : 

 blades of the wings and the keel-petals long-clawed, those of the former not 

 aurieled, those of the latter curved. Style curved, pubescent. Pod narrow, 

 somewhat flattened. — Butterfly-pea. 



1. C. Tematea L. Stem and branches high-twining: leaflets 5-7 cm. long; 

 blades ovate, oval, or orbicular: calyx 16-19 mm. long; lobes of the upper lip 

 acute: standard 40-50 mm. long; blades of the keel-petals longer than the 

 claws: pods 8-11 cm. long. — Pinelands. Nat. of E. Indies. — {Bah., Cuba, Ant.) 



23. GLYCINE L. Tines with tubers. Leaflets 3-9. Panicles many- 

 flowered, dense. Calyx 2-lipped, the upper lip broad, often 2-lobed, the lower 

 lip 3-lobed. Corolla red, purple, or chocolate-colored: standard reflexed, the 

 blade often broader than long: blades of the wings and keel-petals short- 

 clawed, the former aurieled at the base, those of the latter spiral. Style spiral. 

 Pod turgid. [Apios Moench.] 



1. G. Apios L. Kootstocks bearing numerous short tubers 1-2 cm. thick: 

 leaflets 5-7, or rarely 3; blades ovate to lanceolate, 3-10 cm. long: calyx -^5 

 mm. long: standard 9-13 mm. long: pods 6-12 cm. long. — Everglades. — 

 Groundnut. 



24. PHASEOLUS [Tourn.] L. Vines or diffuse plants. Leaflets 3 or 

 rarely 1. Eacemes or panicles simple or branched. Calyx short and very 

 broad, 2-lipped, the upper lip entire or broadly 2-lobed, the lower lip 3-lobed. 

 Corolla variously colored: blades of the wings much smaller than that of the 

 standard, short-clawed : blades of the keel-petals not dilated at the base, short- 

 clawed. Style curved. Seeds with rounded ends. 



Perennial native plant : calyx with minute subtending bractlets : wings aurieled at 

 the base of the blade: ovarv glabrous: free fllament with a lanceolati' base. 



1. P. sinuatus. 



Annual naturalized plant : calyx with large subtending bractlets : 

 wings angled at the base of the blade : ovary pubescent : free 

 filament with a lobed base. -■ P- vulgaris. 



1. P. sinuatus Nutt. Leaflets 2-4 cm. long; blades deltoid-ovate in outline, 

 3-lobed: upper calyx-lobes rounded: standard 8-9 mm. long: wings 12-15 mm. 

 long: pods 3.5-4 cm. long. — Hammocks and adjacent pinelands. — Wild-bean. 



2. P. vulgaris L. Leaflets 5-12 cm. long; blades broadly ovate or that of the 

 terminal one rhombic-ovate or orbicular-ovate, mostly acuminate: panicles 

 duster-like, few-flowered: middle lobe of the lower calyx-lip triangular- 

 lanceolate: standard white to purple; blade 12-16 mm. wide: wings 14-17 

 mm. long: pods linear, straight or slightly curved. — Pinelands and hammocks. 

 Nat. of Eu. — (J«f.)— String-bean. Pole-bean, Kidney-bean. 



25. STROPHOSTYLES Ell. Vines or trailing plants. Leaflets 3. 

 Eacemes or panicles cluster-like. Calyx similar to that of Phascolus, but 

 the lower lip with a larger middle loVje. Corolla mainly pink-purple or white: 

 blades of the keel-petals widely dilated at the base. Style spiral. Seeds with 

 truncate ends. 



