546 FLORA. 



i. Parosela enneandra (Nutt.) Britton. Slender Parosela. (I. F. f. 

 2104.) Erect, 3-12 dm. high, with numerous slender ascending branches. Leaf- 

 lets 5—1 1, linear or linear-oblong, obtusish, 2-1 1 mm. long, narrowed at the base, 

 nearly sessile; spikes 5-13 cm. long; bracts obtuse, nearly orbicular, punctate, 3 

 mm. long, often mucronate; flowers 9-13 mm. long; calyx-teeth subulate, beauti 

 fully plumose, shorter than the corolla; standard small, cordate; keel exceeding the 

 wings; stamens 9. Iowa to S. Dak., Colo., Miss, and Tex. June- Aug. 



2. Paro9ela lanata (Spreng.) Britton. Wooly Parosela. (I. F. f. 

 2105.) Decumbent, branching, softly and densely pubescent, 3-6 dm. long. Leaf- 

 lets 9-13, obovate, obtuse, truncate or emarginate at the apex, narrowed or cuneate 

 at the base, 9-13 mm. long, about 4 mm. wide above; spikes short-peduncled, 

 2.5-10 cm. long; bracts oval or obovate, long-acuminate or mucronate, about 3 mm. 

 long; flowers 6 mm. long; calyx-teeth subulate, plumose; standard cordate, slightly 

 exceeding the wings and keel; stamens 10. Plains, Kans. to Tex., Utah and N. 

 Mex. Summer. 



3. Parosela Dalea (L.) Britton. Pink Parosela. (I. F. f. 2106.) Erect, 

 3-6 dm. high. Leaflets oblanceolate or linear-oblong, obtuse at the apex, narrowed 

 at the base, 4-6 mm. long ; spikes oblong, dense, 2.5-5 cm - l° n g> about 11 mm. 

 thick, peduncled ; bracts ovate or lanceolate, acuminate, deciduous, about equalling 

 the calyx ; calyx silky-pubescent, its teeth linear-lanceolate, acuminate, plumose; 

 corolla about 4 mm. long; keel about equalling the wings. Prairies, 111. to Minn., 

 S. Dak., Tex. and Mex. Aug. -Sept. 



4. Parosela aurea (Nutt.) Britton. Golden Parosela. (I. F. f. 2107.) 

 Erect, pubescent, 3-6 dm. high. Leaflets sessile, obovate, oblong or oblanceolate, 

 obtuse, narrowed at the base, 9-13 mm. long; spikes solitary, short-peduncled, 

 ovoid or oblong, dense, 2.5-8 cm. long, 13-17 mm. thick; bracts ovate, mucronate, 

 shorter than the plumose and pubescent calyx-teeth; corolla 9-1 1 mm. long; 

 standard shorter than the wings and keel. Plains, S. Dak. and Neb. to Tex. 

 Summer. 



5. Parosela nana (Torr. ) Heller. Low Parosela. (I. F. f. 2107a.) Suf- 

 frutescent, silky-villous. Stems 1-2.5 dm. high; leaflets 5, rarely 3, 6-10 mm. 

 long, obovate to linear-oblong, usually minutely glandular beneath; spikes oblong- 

 ovoid, 1-3 cm. long, short-peduncled; bracts ovate, mucronate or short-aristate, 

 caducous; corolla somewhat longer than the setaceous aristate and plumose calyx- 

 teeth. Sand hills and prairies, Kans. to Tex. and Cal. 



6. Parosela Jamesii (Torr.) Vail. James' Parosela. Prostrate or ascend- 

 ing from a woody base, 1-2 dm. high. Leaves 3-foliolate; leaflets 7-18 mm. 

 long, obovate, obtuse, mucronutate, narrowed at the base, densely silky-pubescent; 

 spikes thick, ovoid to oblong, sessile or nearly so; calyx-teeth plumose, aristate; 

 bracts ovate-lanceolate, long-acuminate, usually longer than the calyx; standard 

 reddish-purple; keel yellowish, exceeding the wings. Kans. and Colo, to N. Mex. 

 May-June. \Dalea Jamesii Torr.] 



17. KUHNISTERA Lam. [PETALOSTEMON Michx.] 



Perennial glandular-punctate herbs, with long or deep roots, odd -pinnate leaves, 

 and pink purple or white spicate or capitate flowers. Calyx-teeth nearly equal. 

 Petals with long slender claws ; standard oblong or cordate ; wings and keel-petals 

 similar to each other, their claws adnate to the sheath of the stamen-tube almost to 

 its summit. Stamens 5, alternate with the petals. Ovary sessile, 2-ovuled ; style 

 subulate. Pod membanous, included in the calyx, 1-2-seeded. [Named from the 

 resemblance of these plants to the genus Kuhnia.~\ About 35 species, natives of 

 N. Am. and Mex. 



Foliage glabrous or very slightly pubescent. 

 Flowers white ; leaflets 3-9. 



Leaflets oblong, linear-oblong or oblanceolate ; spikes cylindric or oblong. 



Calyx villous-pubescent. I. K. compacta. 



Calyx glabrous or nearly so. 



Stem little branched; spikes cylindric ; leaflets 13-25 mm. long, thin. 



2. K. Candida. 

 Stem much branched; spikes oblong; leaflets smaller, firm. 



3. K. oligophylla. 

 Leaflets narrowly linear to oblanceolate; heads globose. 4. K. multiflora. 





