ORDER 43. LEGUMINOS.E. 81 



I Pods flat, composed <rf 1 or more 1-seeded joints. Petals united. Stamens 4 10. . MIMOSA. 1 



f Pods continuous, m prickly, 4-sided aud 4-valved. Petals united. Sta. 8 10. .SCHRANKIA. 2 



/i smooth, n Petals distinct. Pod linear. Stamens 5 or 10. .DKSMANTHUS. 3 



n Petals distinct. Pod oblong. Stamens 10. . . .NEPTUNIA. 4 



H Petals united. Trees, shrubs. Sta. 00, monadeL.ALBizziA. 5 



/i Petals distinct, ylw. Shrubs. Stamens 00 . .ACACIA. (5 <t) 58 



Flowers perfect, red or yellow, showy. Trees or shrubs. Lvs. bipinnate.. POINCIANA. (9 u) 59 



Flowers perfect, red or rose-colored. Trees with simple bruad leaves CERCIS. 9 



Flowers perfect, yellow (in our species). Herbs with pinnate leaves CASSIA. 8 



Flowers imperfect, greenish. Trees thorniest, with bipinnate leaves GYMNOCLADUS 6 



Trees thorny. Lvs. pinnate and bipinnate.. .GLEDITSCHIA. 7 



L PODALYRK^K. c Trees. Leaves pinnate. Pod flat and thin CLADASTKIS. 10 



c Trees or shrubs. Lvs. ternate. ..CALLISTACHYS, 60, or pinnate in. .SOPHORA (lO'i)ol 



c Shrubs in the greenhouse, with simple, spiny-toothed leaves CHORIZEMA. (10 b) 65 



c Herbs. p Pod inflated, stipitate. Leaves l-3-foliate BAPTISIA. 11 



p Pud flattened, sessile. Leaves 3-foliate THKRMOPSIS. 12 



X ViCiEJt. d Erect. Tendrils obsolete. Fls. white, with a black spot on each wing. .FABA. 13 



d Climbing. q Leaflets serrate. Pods 2-seeded CICKK. 14 



V Lfts. entire./- Sty. grooved on the back. Sds. 39 glob. .PisuM. 15 



r Sty. flattened on the bk. Sds. 3-9, flattish.LATHYEUS. 16 

 r Sty. flattish. Seeds 1 or 2, Iens-sh<tp&l. . . .LENS. (17 a) 64 



r Style filiform. Seeds 27, roundish VICIA. 17 



ft. HKDYSARKJK. Fls. yellow. g Leaves palmately 4-foliate. Stam. raonadelphous..ZoRNiA. 18 



s Leaves pinnate, 7-49-foliate. Stam. diadelphous. .^ESCHYXOMENE 19 

 Lvs. pinnately 3-7-foliate. Stam. monadelphous. .CHAPMANIA. 20 

 * Leaves pinnately 3-foliate. Pod slender at base. . .SxYLOSANTUES.2! 

 s Leaves pinnately 4-foliate. Pod gibbous at base.. ARACHIS. 22 



Fls. cyanic. M Lvs. pinnate, 6-21-foliate. t umbels pedunculate... COROMLLA. 23 



t rac. pedunculate HEDYSARUM. 24 



u LYS. pin. 3-foliate. t stipellate. Pod 3-7-jointed. . .DESMODIUM. 25 

 t exstipellute. Pod l-jointed..LESPEDEZA. 26 

 *. LOTT.M (including GKNISTE^B, Gen. 2730, TRIFOLIE.E, 3134, and GALEGBJSS, 35 48). 



/ Leaves wanting ; if present, simple. Flowers yellow SPARTIUM. 27 



/ Leaves present, simple. Flowers yellow. v Keel oblong, straight GENISTA. 28 



c Keel falcate, pointed CROTALARIA. 29 



/ Leaves palmately 5-15-foliate (rarely simple). (Genus 35, or) LUPINUS. 30 



/ Leaves palmately 3-foliate. w Small tree with yellow hanging racemes LABURNUM. 31 



w Shrubs. Fls. ylw., axil. Some of the Ivs. simple.. CYTISUS. (31 a) 65 

 u- Herbs with straight, small pods. Fls. capitate. ..TRIFOLIUM. 32 



/ Lrm. pinnately 3-foliate. x Pods curved or spiral. Fls. in spikes, heads, &c MEDICAGO. 33 



x Pods lung and long-pointed. Flowers axillary.. TRIGONELLA, (33 a) 66 

 x Pods 1-2-seeded. Rao. (red, Gen. 50) white or yellow.. MELILOTUS. 34 

 x Pod 1-seeded. y Fls. yellow. Lvs. resinous dotted.. (Genus 48 



y Fls. cyanic. z Lvs. dark-dotted. . .PSORALEA. 35 

 z Lvs. not dotted. .. .(In Genus 26 



/ LVB. pinnate, with no odd leaflet.* 15 to 25 pairs. Tall. Fls. yellow. S SESBANIA. 36 



*1 to 6 pairs. Flowers purple. Cult OROBUS. (13 a) 63 



/ LYS. odd-pinnate, A dotted with dark glands. k Shrub. Fls. spicate AMORPHA. 37 



k Herbs 10-androus DALEA. 38 



k Herb 5-androus PETALOSTEMON.39 



h dotless. i Herbs. Style glabrous. Pod partly 2-celled... ASTRAGALUS. 40 



t Herbs. Style hairy. Pod 1-celled TEPHROSIA. 41 



f Herbs. Style glabrous. Pod 1-celled INDIGOFERA. 42 



i Trees or shrubs. Flowers white or roseate ROBINIA. 43 



i Shrubs with yellow flowers COLUTEA. 44 



t Shrubs with scarlet flowers CLIANTHUS.(44 a) 67 



VMJLSMOUtM. g Lvs. pinnate, 5-15-foliate. m Vine shrubby. Keel falcate WISTARIA. 45 



m Herbs. Keel (straight, Gen. 41) spiral. .Apios. 46 



y Leaves pinnately 3-(rarely l)-foiiate. . .(n) 



n Flowers yellow. Legumes 5-seeded TIGNA. 47 



n Flowers yellow Legumes 1-2-seeded RHYNCROSM, 49 



N Flowers cyanic. .(*) 



