100 LKOrMINOS.lC. (rrLSR FAMILY.) 



ovate, !K-uiniii:ito, and, like tlie calvx, ^^laiidiilaf ami liairy ; CDrolla vii)l('t. — 

 Near St. MaryV, (Joorj^ia, and tlio adjatiMit parts of J-lnrida. July. — Stem 

 2' hi-ili. LcaHcts 2' - .5' lonj;. 



2. P. melilotoides, .Miilix. (ilandular and sii.irinf^lv pubescent; leaves 

 trifoliiilate ; ieatlels olilung lanceolate or elliptical; .>itij)ulc8 subulate; spikes 

 oblong, on jiedundes 2-3 times as long as the leaves; bracts ovate, acumi- 

 nate, veiny; corolla violet; legume rugose. — \'ar. (P. eglandulosa, Ell.) 

 Glandle.xs or nearly so ; bracts ovate-lanceolate, and, like the calyx, villous. — 

 Dry soil, Florida to Tennessee, and westward. May -June. — Stem l°-2° 

 high. Leaficts 1'- 2' long. 



"5. P. Onobrychis, Niut. Pubescent; leaves trifoliolate ; leaflets ovate, 

 acuminate; racemes elongated, somewhat secund; calyx glandular, the teeth 

 small, obtuse, equal ; legume ovate, muricate, wrinkled transversely. — Near 

 S)iartanburg, South Carolina. June- July. — Stem 3°-5°high. Leaves very 

 large. 



4. p. canescens, Michx. Hoary-pubescent; lower leaves trifoliolate, 

 the up]>er simjik', slmrt petioled ; leaflets obovate, glandular; racemes longer 

 than tlie leaves, few-Howereil ; calyx inflated ; flcjwers blue, turning greenish ; 

 legume even. — Dry ])ine barrens, Florida to North Carolina. April - May. — 

 Stem bushy, 2° high. Resembles a Baptisia. 



* * Leaves palmatelij 5 - l-fuliulate. 



5. P. Lupinellus, Michx. Smooth; stem slender, declining, sparingly 

 branched ; leaflets flliform ; racemes longer than the leaves, loose-flowered ; 

 flowers violet; legumes rugose. — Dry ])ine barrens, Florida to North Caro- 

 lina. May- June. — Stem 2° long. Leaflets 2' -3' long. 



6. P. subacaulis, Torr. & Gray. Nearly .stemless; white with spread- 

 ing hairs; leaflets obovate-oblong ; peduncles longer than the leaves, rigid; 

 spikes dense, ovate or oblong. — Rocky hills near Nashville, Tennessee. 

 April -May. — Leaflets 1' long. Peduncles 4' -6' long. Flowers purple- 



* * * Leaves pinnate. 



7. P. multijuga, F.ll. Stem branching ; leaflets numerous (9- 10 pairs), 

 oblong-lanceolate, obtuse, pubescent ; spikes oblong ; bracts small, membrana- 

 ceous, without glands. — Abbeville District, South Carolina. — Stem l°-2° 

 high. Leaflets small. 15racts half as Icfng as the calyx. Flowers violet. 



8. PETALOSTEMON, Michx. 



Calyx nearly equally .5-toothed or 5-clcft. Petals almost regular, on fili- 

 form claws, four of them united with the tube of stamens, the fifth free, cor- 

 date or oblong, folded. Stamens 5, united into a cleft tube. Ovary 2-ovuled. 

 Legume iudeliiscent, I-seeded, included in the calyx. — Perennial glandular 

 herbs, with une(iually pinnate leaves, and white or purple flowers in terminal 

 spikes or heads. 



§ 1. Lower bracts involucrate, empty: calyx teeth setaceous, plumose: heads 

 globular, corymbed. 



1. P. COrymbosus, Michx. Glandular; stems erect, clustered, very 

 leafy ; leaflets 5-15, cuueate-oblong, obtuse, 3" - 4" long ; bracts 9 or more, 



