288 



PAPILIONACEAE. 



[VOL. II. 



2. Parosela lanata (Spreng.) Britton. 

 Wooly Parosela. (Fig. 2105.) 



Dalea lanata Spreng. Syst. Veg. 3: 327. 1826. 

 D. lanuginosa Nutt. ; T. & G. Fl. N. A. i: 307. 1838. 

 Parosela lanata Britton, Mem. Torr. Club, 5: 196. 



1894- 



Decumbent, branching, softly and densely 

 pubescent throughout, i-2 long. Leaflets 9- 

 i3,obovate, obtuse, truncate or emarginate at the 

 apex, narrowed or cuneate at the base, nearly 

 sessile, 4 // -6 // long, about 2" wide above; spikes 

 numerous, short-peduncled, i'-4' long, rather 

 loosely flowered; bracts oval or obovate, long- 

 acuminate or mucronate, about i)4 // long; 

 flowers 3" long; corolla deep purple or red; 

 calyx-teeth subulate, plumose; standard cor- 

 date, slightly exceeding the wings and keel; 

 stamens 10. 



Prairies, Kansas to Texas, Utah and New Mex- 

 ico. Summer. 



3.' Parosela Dalea (L>. ) Britton. Pink 

 Parosela. (Fig. 2106.) 



Psoralea Dalea L. Sp. PI. 764. 1753. 

 Dalea alofiecuroides Willd. Sp. PI. 3: 1336. 



r. Cl 



1803. 

 lub, 5: 196. 1894. 



Parosela Dalea Britton, Mem. Torr. 



Erect, branched, i-2 high, foliage glabrous. 

 Leaflets i5-4i,oblanceolatc or linear-oblong.obtuse 

 at the apex, narrowed at the base, sessile or nearly 

 so, 2 // -3 // long, #"-i" wide; spikes terminal, ob- 

 long, very dense, I'-a' long, about 5" thick, pe- 

 duncled; bracts ovate or lanceolate, acuminate, 

 deciduous, about equalling the calyx, hyaline mar- 

 gined; calyx very silky-pubescent, its teeth linear- 

 lanceolate, acuminate, plumose; corolla pink, or 

 whitish, about 2" long; keel about equalling the 

 wings. 



Prairies. Illinois to Minnesota and Nebraska, south 

 to Texas, Mexico and New Mexico. Aug. -Sept. 



4. Parosela aurea (Nutt.) Britton. 

 Golden Parosela. (Fig. 2107.) 



Dalea aurea Nutt. Fraser's Cat. 1813. 



Psoralea aurea Poir. in Lam. Encycl. Suppl. 4: 590. 



1816. 

 Parosela aurea Britton, Mem. Torr. Club, 5: 196. 



1894. 



Erect, pubescent, simple, i-2 high. Leaflets 

 5-9, sessile, rather distant, obovate, oblong or ob- 

 lanceolate, obtuse at the apex, narrowed at the 

 base, 4 // -6 // long, i^ // -2> // wide; spikes soli- 

 tary, short-peduncled, ovoid or globose, very 

 dense, i'-$ f long, 6 // -8 // thick; bracts ovate, mu- 

 cronate, shorter than the densely plumose and pu- 

 bescent calyx-teeth; corolla yellow, 4 // -5 // long; 

 standard much shorter than the wings and keel. 



Prairies, Missouri to Texas. Summer. 



