Oeder 46. — LEGUMINOS^ffi, 323 



trifoliate. The upper fls. complete, but usually barrea, the lower apet- 

 alous and fruitful. 



1 A. monoioa Niitt. St. retrorsely pubescent; Ifts. ovate, thin; cauline rao. 



simple, pendulous ; oal. segiu. very sliort, triangular-acuminate ; bracts minute. 



A very slender vine in woods and thickets, Can. and XJ. S. St. twining, rough 

 backwards, 4 to 8f in length. Lfts. very thin, 1 to 3' long, f as wide, lateral 

 ones oblique at base. Rac. axillary, few-flowered. Fls. pale purple. Cauline 

 leg. smoothish, with 3 to 4 dark purple seeds. Radical leg. often subterraneous, 

 with one large, compressed, brown seed. Jl., Sept. 



2 A. Pitcheri Torr & Gr. St. villous, vjith ferruginous, spreading hairs; Ifls. 

 rhombic-ovate; rac. erect, often branched; cal. segm. lance-subulate, a third of the 

 length of the tube ; bracts broad, conspicuous. — Alluvion about N". Orleans and 

 W. La. (Hale). Lfts. rather thick, 2 to 3' by IJ to 2', hirsute both sides. Fls. 

 a little smaller (6" long) ; fr. a little larger (16 to 18" long) than in No. 1. Sds. 

 3, compressed, purplish-black. 



51. GALAC'TIA, L. (Gr. ydXa, milt ; some species have a milky 

 juice.) Calyx bibracteolate, 4-cleft, the segments of nearly equal 

 length, upper one broadest, entire ; pet. oblong ; vexillum broadest and 

 incumbent ; keel petals slightly cohering at top ; legume many-seeded. 

 — Herbs prostrate or twining, sometimes shrubby. Lvs. pinnately 

 compound. Eac. axillary. Fls. cyanic. 



S Leaves pinnate, T to 9-foliiite. Stems prostrate, twining No. 1 



§ Leaves pinnately 3-foliate. Stems in-ostrate, twining Nos. 2— -4 



I Leaves pinnately 8-foliate. Stems erect or ascending Nos. 5, 6 



1 G. EUiottii Nutt. Lfts. 1 to 9, coriaceous, elhptic-oblong, obtuse at each 

 end ; ped. longer than the lvs., few-flowered at the top ; upper Sep. (double) 

 broad, ovate, subulate-mucronate. — Ga. (Feay and Pond). Sts. running or chmb- 

 ing many feet. Lfts. 1' or more long, muiutely pubescent beneath. Pods vil- 

 lous, 2' long, 4 to 6-seeded. Corolla white or rose color, 1" long. May — Jl. 



2 G-. glabella Mx. St. nearly glabrous; lfts. 3, elliptic-oblong, emarginate at 

 ' each end, sub-coriaceous, shining above, a little hairy beneath ; rac. pedunculate, 



dbovi the length of the lvs., fls. pedicellate. — In arid soils, N. J. to Fla. Sts. 2 to 

 4f long. Lfts. 10 to 20" by 5 to 10", varying in form from elliptic through ob- 

 long to ovate. Fls. rather large (7 to 8" long), reddish-purple, greenish exter- 

 nally. Pods IJ' long (immature), erect, falcate. Aug. — Sept. 



3 G. nidllis Mx. jSi!. softly pubescent; lfts. oval, obtuse, nearly smooth above, 

 softly villous and whitish beneath ; rac. longer than the lvs., pedunculate, fascicu- 

 late ; fls. on very short pedicels ; leg. villous. — Dry soils, Md. to Ga. St several 

 feet long. Lfts. about 1' long, 8" wide. Fls. about half as large as in the last. 

 Aug. — Sept. 



4 G. pilosa Nutt. St. reirorsely hirsute; lfts. 3, oval-oblong, retuse at apex, 

 finely hirsute on both surfaces, paler beneath ; rac. twice or thrice longer than the 

 1ms., with scattered, distant fls. — TS. Car. to Fla. and La. Sts. several feet in 

 length. Lfts. 1 to 2' long, half as wide, petioles 1 to IJ' long. Fls. a fourth 

 smaller than in No. 2, pale roseate, pedicellate. Pods villous. Jn. — Sept. 



5 G. braoh^poda Torr. & Gr. St. flexuous, somewhat erect ; lfts. 3, oblong or 

 linear-oblong, odd one peiiolulaie, petioles longer than the lfts. or the few-flowered, 

 stallced rac. — Pine barrens, W. Fla. Sts. leaning, 2 or more f high. Lfts. 12 to 

 IS" by 4 to 6" Fls. purphsh, about half as large as in No. 2. 



6 G. sessiliflora Torr. & Gr. St. flexuous, erect ; lfts. oblong-linear or linear, 



odd one subsessile ; petioles longer than the lfts. ; rac. very short, sessile Ala. and 



W. Fla. Sts. two or more together, 1 to 2f high. Lfts. 12 to 20" by 3 to 1", 

 obtuse or emarginate. Fascicles 3 to 6-flowered. Fls. purple. Pods erect, 6 to 

 S-seeded. 



52. DOL'ICHOS, L. (Gr. (JoAt;v;&f, long ; from the great length of 

 these vines.) Calyx 4-lobed, the upper lobe 2-toothed or entire, vexil- 



