298 ORDER 46. LEGUMINOS^E. 



d 2. VICIE.E. Erect. Tendrils obsolete. Seeds with the linear hilutn at end ........ FABA. 12 



Climbing. Leaflets serrate. Pods 2-seeded ..... .................... CICEE. 13 



Leaflets entire. Style grooved outside, hairy inside ...... PISU.M. 14 



Style flattened, hairy most inside. . . .LATHY r.i's. 15 



Style filiform, hairy most outside ......... VICIA. 1(5 



6 3. HBDY8ARIC.fi. 



Fls. yellow. Leaves palmately 4-foliate. Stam. monadclph ................. ZOUNIA. 17 



Leaves pinnate, 7 to 49-foliate. Btam. diadelphous.. .JESCHYXOMKNE. 1> 



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



Leaves pinnately 4-foliate. Pod gibbous at base ............. AUACHIS. 2;> 



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



Eacemes pedunculate ........ HED YSAEUM. 22 



Lvs. pinnately 3-foliate, stipellate. Pod 3 to 7-jointed. . . .DESMODIUM. 28 



exstipellate. Pod 1-jointed ...... LESPEDEZ A. 24 



f 4. LOTE.E. 



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



Keel falcate, acuminate. ......... CUOTALAEIA. 2(*. 



Leaves palmately 5 to 15-foliate (rarely simple). (Genus 30, or) ........... LUPIXUS. 27 



Leaves palmately 3-foliate. Tree with yellow flowers .................. LABUHXU.M. 2:> 



Herbs with straight, small pods ............ TRIFOLIUM. 2'J 



Herbs with curved or spiral pods ........... MEDIOAGO. 30 



Lvs. pinnately fol. Pod few-seeded. Fls. (scarlet, Gen. 49) wh. or j-el.MELiLOTirs. 31 



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



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



Lvs. not dotted ........ (in Gen. 31) 



Lvs. pinnate, with no odd leaflet, 13 to 25 pairs. Pod 1 2-seeded ...... GLOTIDIUM. S'-i 



Pod Go-seeded ......... SESBAXI A. 34 



Lvs. odd-pinnate, dotted with dark glands. Shrub. Fls. spicatc ........ AMOEPHA. 35 



' Herb 10-androus .............. DALEA. 3t> 



Herb 5-androus ....... PETALOSTEMON. 37 



dotless. Legume 2-oelled length wisi>, turgid ...... ASTRAGALUS. 3S 



Legume half 2-celled lengthwise ............... PIIACA. 39 



Leg.jTeelled. Herbs. Style hairy outside. TEPUEOSIA. 40 



Herbs. Style glabrous ..... INDIGOFEKA. 41 



Shrubs or trees. Cyanic ..... ROBIXIA. 42 



Trees with fls. yellow ........ COLUTEA. 4-'i 



g. 5. PHASEOLE.K. 



Lvs. pinnate, 5 to 15-foliatc. Vine shrubby. Keel falcate ................ T\~ISTAEIA. 44 



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



Lvs. pinnateiy 3 (rarely l)-foliate. Fls. yellow. Legumes 5-seeded ......... VIGNA. 4(> 



Fls. yellow. Legumes 1 to 2-seeded.IliiYNCosiA. 47 



Fls. cyanic. (*) 



* Keel with stamens and style spirally twisted ....................... PIIASEOLUS. 4S 



* Keel straightish. Fls. scarlet. Erect herbs or trees ................. EEYTHKINA. 4!) 



Fls. purplish. Calyx ebracteolate ............ A.MPHICAEP.EA. 50 



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



i- toothed ...... DOLICHOS. 52 



5-cleft, long ---- CLITOEIA. 5:> 



5-cleft, short.CENTKosKMA. 54, 



1. MIMOSA, L. SENSITIVE PLANT. (Gr. i-iipog, a buffoon ; the 



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



c^ 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. ^Hcrbs and shrubs, natives of tropical America, <fec. 



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



ovate ; petioles and peduncles very long ; Ivs. bipinnate, pinnas 4 to 6 pairs ; Ifts. 



10 to 15 pairs, oblong-linear; heads oblong; leg. broad, 1 to 3-jointed. Banks of 



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' long. Hds. rose- 



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



2 M. ptidica L. St. prickly, more or less hispid : Ivs. digitate-pinnate, pinna? 



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



