A.MORPHA. XLVII. LEGUMINOS/E. 2*25 



T. ViRGiN'iANA. Pers. (Galcga. Linn.) Goat's Rue. Cat-gut. 



Erect, villous; Ifts. numerous, oblong, acuminate; /ac. terminal, subsea- 

 sile ; kg. lalcatc, villous. — % Plant 1 — 21' high, with heautil'ul while and pur- 

 ple flowers, I'ound in dry sand)' soils, Can., la., 111., S. lo Flor. Stem simple. 

 Leaflets 15 — '27, 10 — 13' by 2 — 3", mucronate, straight-veined, odd one oblong- 

 obcordatc, petiolules 1" long. Stipules subulate, J' long, deciduous. Flowers 

 large, in a dcn.'^c, terminal raceme. Calyx very villous. Banner while, keels 

 rose-colored, wings red. Jl. 



14. PS OR ALE A. 



Gr. ipoipaXsoi, leprous or scaly ; alluding to the glandular dots. 



Calyx 5-cleft, carapanulaie , segments acuminate, lower one longest; 

 stamens diadelphous. rarely somewhat monadelphous ; legume as long 

 as the calj'x, 1 -seeded, iudehiscent. — '^1- or h Often glandvlar. Lvs. 

 various. Stip. cohenng with tlic base of the petiole. l<ls. cyanic. 



1. P. FI.ORIBUXDA. Null. 



Canescent, much branched, destitute of glands ; hs. palmately 3 — 5- 

 foliate; Ifts. oblong-obovate, varying to linear; stip. setaceous; rw^. slender, 

 40 — 50-flowered, twice longer than the leaves; pedicels as long as the flowers 

 and longer than the small, ovate, acuminate bracts; vex. roundish; leg. smooth. 

 —Alluvial soil. III. Mead.! and Ark. W. to the Rocky Mts. Stem 2 — 4f high, 

 the branches spreading. Leaflets 1 — 2' by 2 — 4", common petiole \ — 1' long. 

 Flowers bluish purple, nearly as large (3" long) as in the two following. Jn. 



2. P. ESCULENTA. Ph. 



Hirsute, erect, branching ; lvs. palmately 5-foliate, Ifts. lanceolate ; spikes 

 axillary, dense ; cal. scg. lanceolate, a little shorter than the corolla ; leg. ensi- 

 form, beaked; rt. thick and fusiform. 



B. (P. ESCULENTA. Nutt.) Nearly acax:lescent ; Ifts. oblong-obovate. — Mo. 

 near the lead mines. Stem a few inches high. Leaflets 1 — 3' long, nearly 

 half as wide. Flowers pale blue. The root is about V diam., rather insipid, 

 but is eaten by the Indians, either raw or boiled. Jn. Jl. 



3. P. Ecr.ANDULosA. Ell. (P. melilotoidcs. MicLx.) 



SI. much branched ; Ifts. oblong-lanceolate, fmcly dotted with glands ; 

 spikes oblong; bra/-ts broadly-ovate, acuminate, and with the calyx hairy; leg. 

 roundish, transversely wrinkled. — Dry soils, la. ! to Ark. Slender, 2f high, 

 spreading. Leaflets 2 — 2§' long, I as wide, obtuse, longer than the petioles. 

 Flowers blue. Pods 2" diam. Jn. Jl. 



4. P. Onoerychis. Nutt. 



Pubescent; Ifts. ovate, acuminate; roc. elongated; cal. much shorter 

 than corolla, teeth small, obtu.se, equal ; leg. ovate, transversely wrinkled. — 

 Low grounds and thickets. Western States ! Stem rigidly erect, nearly simple, 

 '.i — 5f high. Leaflets 2 — 4' long, nearly J as wide. Flowers small, pedicellate, 

 blue. Pods exceeding the calyx, rostrate. Jn. Jl. 



15. AMORPHA. 



Gr. a, privative, fiop<pii, form; alluding to the deficiencies of the corolla. 



Calyx subcampanulate, 5-cleft ; vexillum concave, unguiculate, 

 erect ; wings and keel ; stamens exserted ; legume oblong, some- 

 what curved at the point, scabrous with glandular points, 1 — 2-seeded. 

 — Shrubs or halfshrubbi/ American plants. Lvs. imcquall]/ pinnate, 

 punctate. Fls. bluish white, in virgatc racemes. 



1. A. FRUTICOSA. 



Pubescent or nearly glabrous, shrubby or arborescent ; Ifts. 9 — 13, oval, 

 petiolulate, very obtuse, the lower pair remote from the stem; cal. teeth obtuse, 

 short, lower one acuminate and ratlier the longest ; leg. 2-seeded. — A shrub or 

 small tree, 6 — 16f higVi, Wis. Lapham! to La. and JPlor., W. to Rocky Mts, 

 Leaves 3 — 5' long, leaflets about 1' by J', rather remote from each other and 



