DIADELPHIA. DECANDKIA. 99 



Suffrutlcose or more commonly herbaceous, erect or 

 Jifiusc; leaves plnnale; stipules distinct from or connected 

 With the petiole; petioles in some species rig-idly persist- 

 ent, or spinescent; flowers g-lomerate or spiked, axillary 

 and terminal, purple, ochroleucous, or yellow. 



Species. 1. A. caroUnianus. 2. carMcIensis. Both these 

 species are unusually tall with dense spikes of ochroleu- 

 cous flowers. 3. glaher. Ratiier low, and caulescent; leaf- 

 lets (about 10 or 11 pair), oblong--ciliptic, obtuse or emar- 

 ^nate, every where smooth; pedunculate loose spikes lon- 

 ger than the leaves; flowers whitish, pedicellate; legumes 

 distant, smooth, spreading, depressed and incurved. Hab. 

 In the sandy forests of Georgia and Sou:h Carolina. Seldom 

 more than a foot high; fruiting peduncles much longev 

 than the leaves; legume partly bijocular and somewhat 

 rugose. 4. alpinus. 5. secundus. 



6. * missouriensis. Nearly stemless, partly diffuse; sti- 

 pules cauUne, ovate; leaflets small, obovate-elliptlc, canes- 

 cemly villous; peduncles a little longer than the leaves; 

 spikes capitate; calix blackish and strigose; legume oblongj 

 acuminate, nearly smooth and transverocly dilated. H \b 

 On hills throughcut Upper Louisiana; flowering in May. \ 

 very elegant species with deep violet purple flovvers, (tii— ^- 

 IS also a white flowered variety occasionallv to met withv 

 scarcely 6 mches high, pubescence whitish and somewhat 

 shining; leaflets 5 to 10 pair, about the size of Thvmc, 

 leaves obtuse; capitate spike about an inch long; flovvers 

 10 to 12, large for the size of tlie plant; bractes ovate, 

 shorter than the calix; carina obtuse; legume black ami 

 coriaceous, subuniiocular, lower suture inflected. Oxvtra- 

 pu avgentata. Fh. 2. p. 473. but neither the same plant, 

 (which I have examuied in Fallas's lierbarium) nor the 

 same genus. 



7. hvpogloi-is. Oil the low and level plains of the Mls^ 

 souri, commencing about tiie confMence of the rive? 

 .•auke, and continuing upv/ards probably to the .Alountains- 

 flowermg m ilay. It does not sensibly difler in any par-' 

 t,cu.ar trom the European phmr. 8. Laxmanm.HA^. 

 On tl<e h.i s of the M:ssoari, forming a luxuriant and nu- 

 tr.t-.vc herbage torherbivorous animals, and would proba- 

 bly be worth cultivating upon iigiit and (otherwise unpro- 

 ductive soils. Obs. Perennial; stems dillljse and adscen- 

 dent, grooved; bractes cauhne, membranaceous and acu- 

 minate; leaflets a little pubescent, oblong, 6to 8pnir- pe- 

 duncles ax;ll;-y and terminal, mucli longer than 'the 

 leaves, thick and grooved, spike crowded, suboval, bractes 

 acummale, nearly as long as the calix which is bteckish 



