Oedbb 46.— LBGUMINOaa!. 821 



I BnTNonoBiA proper. Golyx segments subulate, the fewer mneh the longest, shorter 



than the corolla. Fl6. in slender racemes No. 1 



I Abgyfhyllum, £11. Calyx iiersisteut. leafy, segments nearly equal, as long as the 



corolla. Lvs. coriaceous, rugose. Fla. fascicled or racemed Nos. 9^4 



I FiTOHERiA, Kutt. Calyx segments lance-subulate, the upper rather the longer, shorter 



than the corolla. Fls. axillary, subsolltary No. B 



1 R. minima DO. Scrambling, puberuleut ; Ifts. membranous, rhomboidal, acute 

 with a large angle; rao. much longer tlian the Iva., about 12-flowered; fls. small, 

 remQte, reflexed. — Along rivers, S. Car. to Fla. and La. A delicate vine, several 

 feet in length. Lfta. not rugose, 6 to 9" square, petiole hardly 1' long. Eac 

 axillary, about 6' long. Pods J' long, mucronate. 



2 R. voliibilis. Twining, pubescent ; lvs. 3-foliat6, Ifts. broadly oval or orbicu- 

 lar, somewhat rhomboidal, obtuse or acute; rac. few (3 to 10)-flowered, peduncu- 

 late; eal. segm. ovate-lanceolate, cuspidate. — Dry woods, 6a. (Miss Keen), to 

 La, (Hale). Sts. 2 to 4f long, square, especially downy on the angles. Lower 

 lvs. sometimes? monophyllus; Ifts. smaller than in No. 3. Sep. becoming quite 

 large in fruit. (R. _difformi3 DC. and R. latifolia Nutt.) 



3 R. simplicifdlia. Dnrarfish, pubescent, erect; lvs. reduced to a single leaflet 

 orbicular or reniform, obtuse. — Dry sandy woods, S. Car. to Fla. and La. St- 

 angular, 1 to 3' high. Lvs. 1 to 2' broad, very veiny and rugous. Fla. small, 

 in one or more dense tufts. Pods ovate-oblong, 1" in length. Apr., May. (B. 

 tomentosa, a. 1. & G.) 



4 R. erecta DC. Tall, erect, velvety-pubescent; lvs. 3-foliate, Hts. elliptic or 

 oval, acute, terminal one sometimes roundish ; fls. fascicled or racemed, axillary 

 and terminal; cal. segm. parted almost to the base, lance-ovate to lance-linear. — 

 Dry soils, Md. to Fla. Sts. about 6-angled, 2 — 5f high. The lowest leaf or lvs. 

 sometimes monophyllous. Lfts. about as large as in No. 3. Rac. 1 to 3' long. 

 (3 to T Ell. in Glycine mollissima.) — The leaflets are sometimes strikingly varie- 

 gated with lines of black dots along the veins above. (B. tomentosa, var. Tor. &, 

 Gr. G. tomentosa, var. Mx. 



5 R. galactoides. Erect, rigid, with many simple, angular, pubescent branches ; 

 lvs. trifoliate, lfts. (small) coriaceous, elliptic or oval, margins reflexed, under sur- 

 face with numerous resinous atoms ; pedicels about equaling the petioles, half as 

 long as the fls. — Ala, and W. Fla. Sts. 2 to 3f high. Lfts. 6 to 9" by 3 to 6", 

 those of the virgate branches much smaller. Fls. yellow. 



48. PHASE'OLUS, L. Kidney Bean. (Lat. phaselus, a little boat ; 

 from the form of the pods.) Calyx subbilabiate, upper lip 2-toothed, 

 lower 3-toothed ; keel with the stamens and style spirally twisted ; 

 legume compressed and falcate, or cylindric, many-seeded ; • seeds com- 

 pressed, reniform. — Herbaceous, twining or trailing. Lvs. pinnately 

 trifoliate ; lfts. stipellate. 



Native species — Fls. racemed. Pods falcate Na 1 



— Fla. 1 or few in a head. Pods straight Nos. 2 — 4 



Exotic. — Stems climbing Nob. 6 — T 



— Btems erect, bushy No. 8 



1 P. per^nnis Walt. Wild Bean Vine. Twining, pubescent ; rac. paniculate, 

 mostly in pairs, axillary; lfts. ovate, acuminate, 3-veined; leg. pendulous, fal- 

 cate, broad-mucronate. — 1( A slender, twining vine, in dry woods. Can. and TJ. 

 3., common. St ^ to 7f long, somewhat branching. Ms. IJ to 3J' long, f 

 to equal width; terminal one often suheordate, lateral ones unequally enlarged 

 at base outside, under surface scabrous. Rac 1 to 3 together, 6 to 12' long, 

 loose, often utifruitfuL Cor. purple and violet. Leg. about 2' long, §' vride, wiUi 

 compressed, reniform, dark purple seeds. JL, Aug. 



a p. diversifdIiuB Pers. St. prostrate, diffuse, scabrous with recurved hairs ; 

 j/!». angular, 2 to 3-loied or entire; ped. longer than the leaf, few-flowered, 

 lower tooth of the calyx longer than the tube ; leg. pubescent, broadly-linear, 

 cylindric. — @) A creeping or climbing plant, 3 to 6f long, on sandy shores and 

 prairies, Can. and U. S. Lfts. 1 to 2' long, J as wide, with scattered hairs 

 beneath, often variously and very obtusely lobed. Ped. 2 to 8-flowered, 3 to 6' 

 long. Cor. purplish. Leg. becomes black when ripe, 5 to 7-seeded. Aug. — Oct. 



21 



