Amorpha. XLVir. LEGUMINOSiE. 225 



T. ViiuiiNiANA. Pers. (Galcga. Linn.) Goal's Rilc. Cat-gut. 



Erect, villous; Ifl.^. nunierous, oblong, acmninate; ra/:. terminal, subses- 

 sile; Ug. falcate, villous. — •~i\. Plant 1 — 21" liii^h, with boautilul while and pur- 

 ple flowers, I'ound in dry sandy soils. Can., la.. 111., S. to l-'lor. Stem simple. 

 Leaflets 15 — '27, 10 — 13'' by '2—3", mueionate, strait^'lit-veincd, odd one oblong- 

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

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

 rose-colored, wings red. JI. 



14. PSORALEA. 



Gr. \p(i)pa\soi, leprous or scaly ; aJluduie to the glandular dots. 



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

 stamens diadelphous. rarely somewhat monadelphous ; legume as long 

 as the calyx, 1 -seeded, indehiscent. — % or h OJ'teti glandular. Lvs. 

 various. Slip. coJicring with the base of the petiole. Fls. cyanic. 



1. P. FLORIBLNDA. Nutt. 



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

 foHate; //?.-?. oblong-obovate, varying to linear; slip, setaceous; roc. slender, 

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

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

 —Alluvial soil, 111. Mead. ! and Ark. W. to the Rocky Mts. Stem 2— 4f high, 

 the branches spreading. Leaflets 1 — 2' by 3 — 4", common petiole J — 1' long. 

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



2. P. ESCULEXTA. Ph. 



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

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

 form, beaked ; rL. thick and fusiform. 



B. (P. EscuLENTA. Nutl.) 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 V diam., rather insipid, 

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



3. P. EGLANDULosA. Ell. (P. mclilotoides. Alickx.) 



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

 spikes oblong; t^ra^ls 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, ^ as wide, obtuse, longer than the petioles. 

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



4. P. Onobrychis. Nutt. 



Pubescent; Ifts. ov^ate, acuminate; rac. elongated; cal. much shorter 

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

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

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

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



15. AMORPHA. 



Gr. a, privative, fiopcprj, 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 half shrubby American plants. Lvs. uneqiually pinnate^ 

 punctate. Fls. bluish white., in virgate raccvies. 



1. A. FRUTICOSA. 



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

 petiolulate, very obtuse, the low^er pair remote from the stem ; cal. teeth obtuse, 

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

 small tree, 6 — I6f higii, Wis. Lapham! to La. and Flor., W. to Rocky Mts. 

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



