322 Obdeb 46.— LEGUMINOS^. 



3 P. hSlvolus L. St. Blender, twining ; Ifts. between oblcng-ovaie ajid lmu»tvaie, 

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

 straight, cylindrio, 8 to lO-sseded. — y Sandy fields, N. Y. to Ma. and La. St. 

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

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

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



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

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

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

 S-seeded. — Prairies, 111. (Mead). Also Ark. and La. St. 2 to 4flong, prostrate. 

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

 (P. leiospermus T. & G.) 



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

 than the Ivs. ; pedicels in pairs ; Cfd. as short as its two bracts at base ; leg. pen- 

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

 Native of E. Indies. Universally 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. Pis. mostly white. JL 



6 P. multiflorus L. Scarlet Pole Bean. St. twining ; Ifts. ovate-acute ; 

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

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

 St. 6 to lOf long, twining against the sun. FLs. scarlet, numerous, and very bril- 

 liant. Fr. not so generally admu-ed as the last. Jl. 



7 P. lundtus L. Lima Bean. St. twining ; lfts. ovate, deltoid, acute ; roc 

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

 soimetar-shaped, or somewhat lunate; sds. large, much compressed, purplisb- 

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

 valued and cultivated. Jl. 



8 P. nanus L. Bush Bean. St. smooth, very branching, erect ; lfts. broad- 

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

 rugous. — ® Native of India. St. If high. Pis. Tfiite. Seeds white, small, but 

 there are many varieties. Much cultivated. Jn. 



49. ERYTHRrNA, L. {Gt^. e^vO^h^, 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 B. herbdcea L. Glabrous; lfts. 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 Pla. and La. A plant of splMi- 

 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 small. Sds. 

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



2 B. Crista-gdlli L. Cocks-comb. St. arboreous, unarmed ; lfts. ovate or 

 elliptical, coriaceous, the petiole and midv«ia armed with strong, hooked prickles; 

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

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

 branches. Apr., Jn. From Brazil. 



50. AMPHICARPiE'A, Ell. Pba Vine. (Gr. o/i^t, Lat. ambo, 

 both, KopTTOf, 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 

 utipe ; legume flat, 2 to 4-seeded. — Q Slender, twining. Lvs. pinnately 



