Amorpha. XLVII. LEGUMINOSiE. 225 



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



Erect, villous ; Ifts. numerous, oblong, acuminate ; rac. terminal, subses- 

 sile ; leg. falcate, villous. — % Plant 1 — 2f high, with beautiful while and pur- 

 ple flowers, found in dry sandy soils. Can., la., 111., S. to Flor. Stem simple. 

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

 obcordate, petiolules 1" long. Stipules subulate, \' long, deciduous. Flowers 

 large, in a dense, terminal raceme. Calyx very villous. Banner white, keels 

 rose-colored, wings red. Jl. 



14, PSORALEA. 



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



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

 stamens diadelphous, rarely somewhat monadelphous ; legume as long 

 as the calyx, 1 -seeded, indehiscent. — % or h Often glandular. Lvs. 

 furious. Slip, cohering ivith the base of the petiole. Fls. cyanic. 



1. P, FLORIBUNDA. Nutt, 



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

 foliate; Ifts. oblong-obovate, varying to linear; stip. setaceous; rac. 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, 111. 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 tiie two following, Jn, 



2. P. ESCULENTA. Ph. 



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

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

 form, beaked ; rt. thick and fusiform, 



B. (P. ESCULENTA, Nutt.) Nearly acaulescent; Ifts. oblong-obovate.— Mo. 

 near the lead mines. Stem a few inches high. Leaflets 1 — 2' long, nearly 

 half as wide. Flowers pale blue. The root is about 1' diam., rather insipid, 

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



3. P. EGi.ANPULosA. Ell. (P, mclilotoides. Michx.) 



St. much branched ; Ifts. oblong-lanceolate, finely dotted with glands ; 

 spikes oblong; bracts broadly-ovate, acuminate, and with the calyx hairy; leg. 

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

 spreading. Leaflets 2 — 2i' long, ^ as wide, obtuse, longer than the petioles. 

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



4. P, OnobrStchis. Nutt. 



Pubescent ; l/ts. ovate, acuminate ; rac. elongated ; cal. much shorter 

 than corolla, teeth small, obtuse, equal; Z^o-. ovate, trajisversely wrinkled.— 

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

 3 — 5f high. Leaflets 2 — 4' long, nearly h as wide. Flowers small, pedicellate, 

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



15. AMORPHA, 



Gc. a, privative, jiopipr], form; alluding to the deficiencies of the corolla. 



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

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

 wliat curved at the point, sca})rous with glandular points, 1 — 2-scedod. 

 — Shrubs or hnlf-shrubhi/ American plants. Lvs. unequally jnnnate^ 

 'punctate. Fls. bluish ic/tlte, in tnrgate racemes. 



1, A. FRUTICOSA. 



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

 petiolulate, very obtuse, the lower pair remote from the stem; 'cnl. teeth obfust*. 

 short, lower one acuminate and ratlier the longest; lei:. 2-sft^ded. — A shrub or 

 small tree, G— IGf higii, Wis. I^;j>liam! to La. and Flor., W. to Rorlcy Mts. 

 Loaves 3 — 5' long, leaflets nboiii 1' by h', rather rcmofp from each other and 



