ORDER 4G. LEGUMINOS^E. 305 



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

 axillary. 



* Leaflets about 4 (3 to 7). Annual ... Nos 1 2 



* Leaflets about 10 (8 to 24). Peduncle many (5 20)-floweVeii Perennial '.'.'.. '. '. '.'.V.'.Nos.'s 5 



Peduncle few (l 5j-llo\vcrc<l Nos. 6, T 



1 V. tetrasperma LoiseT. Fed. 1 to 2-fawered, in Jl. shorter (infr. longer} than 

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

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

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

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

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



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

 simple ; roc. 3 to S-flowered, lo.iger than the leaves. Qa. and Fla. Very slender, 

 glabrous. St. 3 to 61' long, climbing. Lfts. G to 12" long, 1" wide. Fls. small 

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

 8-seeded (4 to 10). 



3 V. Americana Muhl. Ped. 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. N. 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. Style 

 very hairy at tho summit. May. 



4 V. Caroliniaiia Walt. Ped. G to 10 or 12-flowered, rather shorter than tho 

 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, smoothish ; leg. not reticulated, oblong. "Woods and river banks. 

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

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



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

 ceme; Ifts. 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, downy. Lvs. of many pairs of downy, mucronate Ifts., with a 

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

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



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

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

 tate, dotted ; leg. erect, roundish, reticulated, smooth. (1)A 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 tho leaves. Leg. 1 to 2' long. Jn. 



7 V. hirsuta Koch. Lfts. linear, truncate, mucronate; stip. semisagittate, nar- 

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

 weed in cultivated fields, 1ST. 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. micraiitha Nutt , with the fls. minute and solitary on tho peduncle, and 

 V. Ludoviciana Nutt. (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 Zornc, M.D., of Bavaria.) Calyx 



bslabiate, upper lip obtuse, emarginate, lower 3-cleft ; corolla perigy- 

 nous, vexillum 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 Ivs. and sagittate 

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

 Z. tetraph^lla MX. Lfts. 4 ; stip. or bracts oval, acute ; leg. aculeate, about 

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



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