Order 4C— LEGUMINOS^E. 305 



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

 axillary. 



• Leaflets about 4 (3 to T). Annual Nos. 1, 3 



• Leaflets about 10 (8 to 24).— Peduncle many (5— 20)-flowered Perennial Nus. 3— i 



— Peduncle few (l — 5)-flowered Nos. 6, T 



1 V. tetrasperma Loiael. Ped. 1 to 2-flowered, in fl. shorter (infr. longer) than 

 the $08. ; leg. smooth, 4-seeded ; lfts. 4 to 6, small, linear, obtuse ; stip. lanceolate, 

 semi-sagittate. — Slender and delicate plants, banks of streams, &e., Can. to 

 Penn. Sts. almost filiform, 1 to 2f long. Lfts. 5 to 10" by 1", acute or obtuse. 

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

 times 5-secded. Jl. (V. pusiila Muhl. Ervum, L.) 



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

 simple; roc. 3 to 9-flowercd, longer than the leaves. — Ga. and Fla. Very slender, 

 glabrous. St. 3 to Cf long, climbing. Lfts. 6 to 12" long, 1" wide. Fls. small 

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

 8-seeded (4 to 10). 



3 V. Americana Muhl. Fed. 4 to S-flowerod, shorter than the Ivs. ; stip. semi- 

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

 6omewhat alternate ; leg. oblong-linear, compressed, reticulated. — X. Y. W. to tho 

 E. Mts. Sts. slender, 1 to 3f long. Lfts. 1' by 5' , subsessile. Fls. blue or pur- 

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

 very hairy at tho summit. May. 



4 V. Caroliniana Walt. Ped. 6 to 10 or \2-flowcred, rather shorter than tho 

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

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

 long or linear, smoothish ; leg. not reticulated, oblong. — Woods and river banks. 

 A slender climber, 4 to 6f long. Lfts. 6 to 12" by 1 to 3", mostly alternate. Fls. 

 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; lfts. 12 to 24, oblong, puberuknt ; stip. semi-sagittate, linear-subulate, entire. — 

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

 Can. St. square, downy. Lvs. of many pairs of downy, mucronate lfts., with a 

 branched tendril at the end cf tho principal stalk. Lfts. 6 to 8" by 2 to 3", peti- 

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



6 V. sativa L. Vetcii. Tares. Fls. solitary, or in pairs, subsessile; lfts. 10 

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

 tate, dotted ; leg. erect, roundish, reticulated, smooth. — QQA 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. palo purple, half as long as tho leaves. Leg. 1 to 2' long. Jn. § 



7 V. Lirsuta Koch. L r t3. linear, truncate, mucronate; stip. semisagittate, nar- 

 row ; ped. 3 to 6-flowered, shorter than leaves ; leg. hirsute, 2-sceded. — 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. Ped. axillary, 3 to 6 flow- 

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

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



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

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

 moro 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 Zornc, M.D., of Bavaria.) Calyx 

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

 nous, vcxillum orbicular, with the sides revolute ; stamens monadel- 

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

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

 stip., which are enlarged above and suppby the place of bracts. (Fig. 184.) 

 Z. tetraphylla Mx. Lfts. 4 ; stip. or bracts oval, acute ; leg. aculeate, about 



3-joiuted. — A plant of many singular marks, N. Car. to Fla,. and Tex. Sts. pros* 



20 



