ORDER 46. LEGUMINOS^E. 305 



pinnate, with several pairs of leaflets, and a branching tendril. Peduncles 

 axillary. 



* Leaflets nt.ont 4 (3 to T). Annual Nos. t, 2 



Leaflets about 10 (S to 24). Peduncle many (5 20)-flo wered Perennial Nos. 33 



Peduncle few (1 5)-flowcred Nos. 6, 7 



1 V. tetrasperma Loisel. Fed. 1 to 2-floivered, in ft. shorter (infr. longer) than 

 the Ivs. ; leg. smooth, 4-seeded ; Ifts. 4 to 6, small, linear, obtuse ; stip. lanceolate, 

 semi-sagittate. Slender and delicate plants, banks of streams, <fec., Can. to 

 Penn. Sts. almost filiform, 1 to 2f long. Lfts. 6 to 10" by 1", acute or obtuse. 

 Fls. very small, bluish-white, on filiform peduncles. Leg. 4 to 6" long, 4- some- 

 times 5-seeded. Jl. (V. pusilla Muhl. Ervum, L.) 



2 V. acutifolia E!l. Lfts. 3 to 6, linear, acute; stip. lance-linear ; tendrils mostly . 

 pimple; roc. 3 to %-flowered, longer than the leaves. Ga. and Fla. Very slender, 

 glabrous. St. 3 to Gf long, climbing. Lfts. 6 to 12" long, 1" wide. Pis. small 

 (3'' Ion?), bluish white. Calyx teeth shorter than tube. Pods 1' long, about 

 8-seeded (4 to 10). 



3 V. Americana Muhl. fed. 4 to 8-flowered, shorter than the Ivs. ; stip. semi' 

 sagittate, deeply dentate; Ifts. 10 to 14, elliptic-lanceolate, obtuse, mucronate, veined, 

 somewhat alternate; leg. oblong-linear, compressed, reticulated. X. Y. "W. totho 

 R. Mts. Sts. slender, 1 to 3f long. Lfcs. 1' by 5", subsessile. Fls. bluo or pur- 

 ple. Lower calyx teeth broad-lanceolate, much longer than the 2 upper. Stylo 

 very hairy at the summit. May. 



4 V. Caroliniana "Walt. Ped. G to 10 or 12-ftowered, rather shorter than the 

 leaves ; fls. loose ; teeth of the calyx shorter than the tube, the two upper very 

 short; sty. hairy at the summit; stip. lance-linear, entire; Ifts. 8 to 12, linear-ob- 

 long or linear, srnootldsh ; leg. not reticulated, oblong. Woods and river banka. 

 A slender climber, 4 to Gf long. Lfts. G to 12" by 1 to 3", mostly alternate. Fla, 

 3" long, pale blue, the banner tipped with deep purple. May. 



5 V. Cracca L. TUFTED VETCH. Fls. imbricated, 12 to 20 or more in the ra- 

 ceme; lf!s. 12 to 24, oblong, puberulent; stip. semi-sagittate, linear-subulate, entire.-^ 

 A slender climber, 2 to 3f long, about fences, hedges, thickets, &c., lat. 39 to 

 Can. St. square, down}'. Lvs. of many pairs of downy, mucronate Ifts., with a 

 branched tendril at the end cf the principal stalk. Lfts. G to 8" by 2 to 3", peti- 

 olulate, Fls. bluo and purple, in a long, dense, one-sided raceme. Jl. 



6 V. sativa L. VETCH. TARES. Fls. solitary, or in pairs, subsessile; If is. 10 

 to 12, oblong-obovate, often linear, retuse, mucronate ; stip. semisagittate, subden- 

 tate, dotted ; leg. erect, roundish, reticulated, smooth. QjA slender climbing plant, 

 found in cultivated fields, introduced from Europe. St. decumbent or climbing, 

 2 to 3f long. Lfts. 8 to 12" by 1 to 4'', lower ones near the base of the petiole. 

 Fls. pale purple, half as long as the leaves. Leg. 1 to 2' long. Jn. 



7 V. Iiirsuta Koch. Lfts. linear, truncate, mucrouate ; stip. semisagittate, nar- 

 row; ped. 3 to 6-flowered, shorter than leaves; lug. hirsute, '2-seeded. A creeping 

 weed in cultivated fields, N. Y. to S. Car. St. very slender, 1 to 3f long. Lfts. 

 8 to 20, 4 to 8" long, hardly 1" wide, broadest above. Pcd. axillary, 3 to G flow- 

 ered. Gal. segm., rather shorter than the bluish white corolla. Leg. short, with 

 roundish, compressed brown seeds. Jn. f (Ervum, L.) 



V. xnicraiitha Nutt , with the fls. minute and solitary on tho peduncle, and 

 V. Ludoviciana Xutt. (V. Leavenworthii T. & G., is the same plant with a 

 more slender habit) sent from "W. La. (Hale) have not yet, to my knowledge, been 

 found East of the Miss. River. 



17. ZOR'NIA, Gmel. (For John Zorne, M.D., of Bavaria.) Calyx 

 bilabiate, upper lip obtuse, cmarginate, lower 3-clcft ; corolla perigy- 

 nous, vexillum orbicular, with the sides rcvolute ; stamens monadel- 

 phous, the alternate anthers different; legume compressed, of 2 to 5 

 roundish joints. Herbs with palmately 2 to 4-foliate Ivs. and sagittate 

 !;tip., which are enlarged above and supply the place of bracts. (Fig. 1 84.) 

 2. tetraphylla MX. Lfts. 4; stip. or bracts oval, acute; leg. aculeate, about 



3-jointed. A plant of many singular marks, N. Car. to Fla. r.nd Tex. Sts. pros. 

 20 



