298 ORDER 46. LEGUMINOS^. 



d 2. ViciE.fi. Erect. Tendrils obsolete. Seeds with the linear hilura at end ........ FAB A. 13 



Climbing. Leaflets serrate. Pods 2-seeded ____ .................... CICKB. 13 



Leaflets entire. Style grooved outside, hairy inside ...... PISUM. 14 



Style flattened, hairy most inside.. ..LATIIYRUS. 15 



Style filiform, hairy most outside ......... VICIA. lt> 



e 3. HEDYSARZ2E. 



Fls. yellow. Leaves palmately 4-foliate. Stain, monadelph ................. ZORNIA. IT 



Leaves pinnate, 7 to 49-foliate. Stam. diadelphous.. .^ESCHYNOMKNB. 1$ 

 Leaves pinnately 3-foliate. Pod slender at base ........ STYLOSANTHES. 19 



Leaves pinnately 4-foliate. Pod gibbous at base ............. AKACHIS. 2i> 



Fls. cyanic. Lvs. pinnate, 5 to21-foliate. Umbels pedunculate .......... COKONILLA. 21 



Racemes pedunculate ........ HEDYSAKUH. 22 



Lvs. pinnately 3-foliate, stipellate. Pod S to 7 -jointed. . ..DESMODITTM. 23 



cxstipellate. Pod 1 -jointed ...... LESPEDBZA. 24 



f 4. LOTKJS. 



Leaves simple, with yellow flowers. Keel oblong, straight ................ GENISTA. 25 



Keel falcate, acuminate .......... CKOTALARIA. 26 



Leaves palmately 5 to 15-foliate (rarely simple). (Genus 32, or) ........... LUPINITS. 2T 



Leaves palmately S-foliate. Tree with yellow flowers .................. LABURNUM. 25 



Herbs with straight, small pods ............ TRIFOLTUM. 23 



Herbs with carved or spiral pods ........... MEDICAGO. 83 



Lvs. pinnately 3-fol. Pod few-seeded. Fls. (scarlet, Gen. 49) wh. or yel .MELILOTUS. 81 



Pod 1-seeded. Fls. yellow. Lvs. resinous-dotted ...... (Gen. 47) 



Fls. cyanic. Lvs. dark -dotted ..... PSORALEA. 32 



Lvs. not dotted ........ (in Gen. 24) 



Lvs. pinnate, with no odd leaflet, 15 to 25 pairs. Pod 1 2-seeded ...... GLOTIIHU.M. 3:5 



Pod GO-seeded ......... SESUAXIA. 84 



Lvs. odd-pinnate, dotted with, dark glands. Shrub. Fls. spicate ........ AMORPUA. 35 



Herb 10-androns .............. DAIEA. 38 



Herb 5-androus ....... PETAL.OSTEMON. 3T 



dotless. Legume 2-celled lengthwise, turgid ....... ASTRAGALUS. 3* 



Legume half 2-celled lengthwise ............... PIIACA. 31) 



Leg. 1-celled. Herbs. Style hairy outside. TEPUROSIA. 40 



Herbs. Style glabrous ----- INBIGOFE.RA. 41 



Shrubs or trees. Cyanic ..... ROBJNIA. 42 



Trees with fls. yellow ........ COL.UTEA. 4S 



g. 5, PHASEOLE^E. 



Lvs. pinnate, 5 to 15-foliate. Vine shrubby. Keel falcate ................ WISTARIA. 44 



Herbs. Keel (straight, Gen. 49) spiral ......... APIOS. 45 



Lvs. pinnately 3 (rarely l)-foliate. Fls. yellow. Legumes 5-seeded ......... VIGNA. 46 



Fls. yellow. Legumes 1 to 2-seeded.lluYNCosiA. 41 



Fls. cyanic. (*) 



* Keel with stamens and style spirally twisted ....................... PHASEOL.TTS. 43 



* Keel straightish. Fls. scarlet. Erect herbs or trees ................. EEYTHRINA. 49 



Fls. purplish. Calyx ebracteolate ............ AMPIIICARP^EA. 50 



Calyx bibracteolate, 4-cleft ........ GALACTIA. 51 



4-toothed. ..... DOLICIIOS. 52 



5-cleft, long ____ CLITORIA. 53 



5-cleft, short.CENTROSEMA. 54 



i. MIMO'SA, L. SENSITIVE PLANT. (Gr. fw^o^, a buffoon ; the 



leaves seem sporting with the hand that touches them.) Flowers ? $ . 



Calyx valvate, 5-toothed ; corolla 0, or 5-toothed, stamens 4 to 15 ; 



legume separated into 1-seeded joints ; $ like the perfect, "but without 



ovaries or fruit. H Herbs and shrubs, natives of tropical America, &c. 



1 M. strigillosa Torr & Gr. Nearly unarmed, prostrate, diffuse, strigous; slip. 



ovate; petioles and peduncles very long; Ivs. bipirmate, pinnae 4 to 6 pairs; Ifts. 



10 to ISjpairs, oblong-linear; heads oblong; leg. broad, 1 to 3-jointed.-r-Banks oi 



the Miss. (Hale) to E. Fla. Sts. several feet in length, reddish and in appearance 



smooth. Lfts. 3 to 4" by 1", crowded. Fed. and Ivs. 6 to 8 r long. Hds. rose- 



color, with innumerable spreading stamens. Pods crowded, very hispid. Jl., Aug. 



2 M. pudica L. St. prickly, more or less hispid ; Ivs. digitate-pinnate, pinnaa 



4. of many (20 or more) pairs of linear Ifts. Native of Brazil. St. shrubby, about 



