322 ORDER 46. LEGUMINOS^E. 



3 P. helvolus L. St. slender, twining; Ifts. between oblong-ovate and lance-ovate, 

 not lobed; ped. slender, several times longer than the Ivs., few-flowered; leg. 



straight, cylindric, 8 to 10-seeded. 2{ Sandy fields, N. Y. to Fla. and La. St. 

 3 to 5f long. Lfts. 1 to 2' by to 1'. Ped. 4 to 8' long, 4 to 7 -flowered. Cal. 

 with 2 bracts at base. Cor. purplish, vexillum large, roundish. Leg. 2 to 3' 

 long, very narrow, subfalcate. Aug., Sept. (Strophostylis peduncularis Ell.) 



4 P. pauciflorus Benth. St. slender, retrorsely hirsute ; Ifts. linear-oblong, not 

 lobed, as long as the petiole, hirsute and reticulated on both surfaces ; stip. 

 subulate ; ped. much longer than the Ivs. ; hds. few-flowered ; leg. hirsute, 5 to 

 8-seeded. Prairies, 111. (Mead). Also Ark. and La, St. 2 to 4f long, prostrate. 

 Lfts. 1 to 2' by 3 to 5". Pods 1 to H' long, straight -and slender. Jl., Aug. 

 (P. leiospermus T. & G.) 



5 P. vulgaris L. St. twining; Ifts. ovate-acuminate; roc. solitary, shorter 

 than the Ivs. ; pedicels in pah's ; cal. as short as its two bracts at baso : leg. pen- 

 dulous, long-mucronate ; seed reniform, variously, often brightly colored. (I) 

 Native of E. Indies. Upiversally cultivated in gardens, not only for the mature 

 fruit but for the young pods which constitute that favorite dish, string beans. 



" St. 3 to 8f long, twining against the sun. Fls. mostly white. Jl. 



6 P. multiflorus L. SCARLET POLE BEAN. St. twining; Ifts. ovate-acute ; 

 rac. solitary, as long as the Ivs. ; pedicels opposite ; cal. longer than the 2 ap- 

 pressed bracts at base ; leg. pendulous ; seeds reniform. (T) Native of S. America 

 St. 6 to 1 Of long, twining against the sun. Fls. scarlet, numerous, and very bril- 

 liant. Fr. not so generally admired as the last. Jl. 



7 P. lunatus L. LIMA BEAN. St. twining ; Ifts. ovate, deltoid, acute ; rac. 

 shorter than the Ivs. ; ped. in pairs ; cal. longer than its 2 bracts at base ; leg. 

 scimetar-shaped, or somewhat lunate; sds. large, much compressed, purplish- 

 white. Native of E. Indies. St. 6 to 8f long. Fls. small, whitish. Much 

 valued and cultivated. Jl. 



8 P. narms L. BUSH BEAN. St. smooth, very branching, erect ; Ifts. broad- 

 ovate, acute ; cal. shorter than its 2 bracts at base ; leg. pendulous, compressed, 

 rugous. (I) Native of India. St. If high. Fls. white. Seeds white, small, but 

 there are many varieties. Much cultivated. Jn. 



49. ERYTHRl x NA, L. (Gr. eputfpt^, red ; from the color of the 

 flower.) Calyx campanulate, tubular, truncate or lobed; vexillum 

 long, lanceolate, with no callosities ; wings and keel much smaller ; 

 stamens straight, nearly as long as the vexillum ; style glabrous ; le- 

 gume torulous. Trees, shrubs, or herbs, often prickly. Lvs. pinnately 

 trifoliate. Fls. racemed. 



1 E. herbacea L. Glabrous; Ifts. rhombic-hastate, with 3 rounded, shallow 

 lobes, petioles, with here and there a small hooked prickle; rac. terminal; cal. 

 truncate ; leg. dehiscent. In rich soils, S. Car. to Fla. and La. A plant of splen- 

 did hues, arising from a thick subterranean rhizome, 3 to 4f high. Sts. simple, 

 purple. Lfts. 2 to 3' long, f as wide, the petiole twice as long. Fls. numerous, 

 slender, the banner 2' long, deep scarlet, the keel and wings very email. Sds. 

 scarlet, the size of a small bean. Apr., Jn. 



2 E. Crista-galli L. COCKS-COMB. St. arboreous, unarmed ; Ifts. ovate or 

 elliptical, coriaceous, the petiole and midvein armed with strong, hooked prickles ; 

 cal. short, campanulate, vex. strongly curved. A handsome flowering shrub or 

 tree, planted at the South. Rac. of many large scarlet flowers, terminal on the 

 branches. Apr., Jn. From Brazil. 



50. AMPHICARPJTA, Ell. PEA VINE. (Gr. dfju}>i, Lat. ambo, 

 both, /capTToc, fruit ; i. e., two kinds of fructification.) Calyx tubular, 

 campanulate, with 4 or 5 nearly equal segments ; petals oblong ; vex- 

 illum with the sides appressed ; stigma capitate ; ovary on a sheathed 

 stipe ; legume flat, 2 to 4-seeded. Slender, twining. Lvs. pinnately 



