DIADELPHTA. DECANDRIA, lOS 



with P. esculentay which It someu hat resembles, but is co- 

 vered with a soft, white, and silky vilhis, hut not tomen- 

 tose. Spikes axii'.jiry, (afttrlhe manner of the genus, as it 

 appears in Norili America,) about tr(n"n 6 to 10-flou cred, 

 flowers small, brig-lit aztiie bhie. The whole plant about 

 22 inches hij^h and rarely branched. Flowering in July- 

 P. (irgophylla. Ph. 2. p. 475. 



5. teimifiCra. Pri. Nearly' smooth, and everywhere con- 

 spicuously punctate: stem d.iPusely and slenderly branch- 

 ed: leaves ternate, leaflets obIong--eHiptic, obtuse; racemes 

 filiform, ■few-flowered; calix nearly equal; bractes 3-flow- 

 ^red, shorter than the pedicells; root flae^ellately fusi- 

 form. Hab. On the plains of the Missouri, nearthe Ari- 

 karee vilhr.^-e: rare. Obs. Habit or mode of vegetation 

 similar to Bii1>'isia iinctona. Stem about 2 feet hig-h, 

 slenderly ])ubcscent; leaflets about 5 lines long, thick, 

 opaque, and copiously punctured, slightly pubescent be- 

 neatii; rac«;mes 2 or 3 inches long, axillary, interrupted, 9 

 to 12 or njore flowered, growing by 3's, very small and 

 pale purple; caljx in tiiis and the tbllov.-ing more nearly 

 equal than in any other species; bractes persistent. 



6. * arenarfa. Nearly smooth, stem dichotomous, spa- 

 ringly branclied, erect; leaves ternate, leaflets linear-sub- 

 lanceolate, obtuse, and mucronulate; peduncles longer 

 than the leaves; spikes capitate, muny-flouered, bractes 

 deciduous; deiitaies of the calix minute, obtuse, nearly 

 equal; root repent. Hab On the sandy banks of the Mis- 

 souri, from the river Platte to tlie Mountains. Flower- 

 ing in July and August. P. lanceolata. Ph. 2. p. 475. P. 

 ellipdca, of the same, in Suppl. 2. p. 741. Obs. Growing 

 in great quantities togetlier, sending up shoots in every di- 

 rection through the sand. In which S(;il it is exclusively 

 met with. Stem about a foot; leaves aromatic whenbruis* 

 ed, attenuated downwards, more than an inch long, sti- 

 pules linear; flowers pedicellate, small and numerous, 

 pale purplish blue; dentures of the calix obtuse, and gian- 

 dulous. 



7. LiLpiticUus. Very sm.ooth; leaves digitate, upon long 

 petioles; leaflets by sevens and fives, filiform-linear; ra- 

 cemes pedunculate, mucli longer than the leaves, (axilla- 

 ry) many-flowered; bractes 1-flowered, shorter than the 

 peduncles; lower denture of the calix produced, legume 

 mgose. Hab. From South Carolina to Florida; rare. A 

 very singular plant; the leaves are so narrow as scarcely 

 to be distinguished from the petiole, and 2 to 3 inche.s. 

 \o'^^, extremely deciduous when dry; peduncles \e:Yy 

 tliick, near a span long; flowers purplish, not remarkably 



