jackhonia. CAPPARIDACE/E. 67 



CLEOME. 



1 JACKSONIA Raf. Med. Repos. v, 352. 

 POLANISIA Raf. Jourfi. de Phys. 98. (1819). 



Annual, ill-scented and mostly glandular herbs, with simple or 

 3-9 foliolate petioled leaves, and yellowish, rose-color or white 

 flowers in leafy-bracted racemes. Sepals 4 deciduous, lanceolate, 

 sometimes connate at base. Petals on claws or sessile, equal or 

 unequal, torus small depressed. Stamens 8-32 inserted below 

 the torus. Pods erect on spreading pedicels, membranaceous, 

 very shortly stipitate, elongated, compressed or cylindrical, many- 

 seeded, dehiscent from the top downward. Seeds round-reniform, 

 rugose or reticulated. 



J. trachysperma Greene Pitt, ii, 175. Glandular-pubescent, erect 6- 

 24 inches high : leaves 3-foliolate, leaflets lanceolate %-2 inches long, 

 acute, about equalling the petioles, nearly sessile : floral bracts mostly 

 simple, ovate to lanceolate, shortly petioled petals 3-5 lines long, 

 with slender claws as long as the sepals, and an emarginate blade: 

 stamens 12-19, filaments exserted: style 2-3 lines long: pods 1-2| inches 

 long, very rarely on a short slender stipe: seeds finely pitted and often 

 warty. Oregon and Idaho to Brit. Columbia, Kansas and southward to New 

 Mexico and Texas. 



2 CLEOME L. Syst. Nat. ed. 1. 



Erect branching annuals ; with palmately 3-8 foliolate 

 leaves and yellow or purple flowers, in bracteate racemes. Sepals 

 4, sometimes united at base. Petals with claws or sessile. Sta- 

 mens 6, upon the small torus. Pods linear to oblong, stipitate, 

 many-seeded : style short or none. Pods pendant on spreading 

 pedicels, dehiscent from the base upward. Seeds globose-reni- 

 form to ovate. Ours all of 



§ Eucleome Gray Syn. Fl. i, 183. Torus little or not at all 

 columnar below the stamens, but commonly thickened, and bear- 

 ing a glandular projection behind the ovary: this in all our spe- 

 cies raised on a slender stipe or carpophore. Cleowe EndL 



* Calyx 4-cleft, tardily deciduous, petals indistinctly if at all 

 unguiculate. 



C. serrulata Pursh. Fl. ii, 441. C. integrifoHa T. & G. Fl. i, 122. 

 Somewhat glaucous, 2-3 feet high, widely branching; leaves 3-foliolate; leaf- 

 lets oblong to lanceolate, or the uppermost linear, entire, submucronate: ra- 

 cemes sometimes nearly a foot long: flowers large, showy, reddish-purple, 

 rarely white: sepals united to the middle, persistent; segments triangular- 

 acuminate: petals with very short claws, stamens equal: pods oblong-lin- 

 ear, compressed, much longer than the stipe. On watercourses, from the 

 Columbia river to Colorado, New Mexico and Dakota. 



C. lutea Hook. Fl. i, 70, t. 25. Glabrous or slightly pubescent ; 1-3 

 feet high: leaves 5-foliolate: leaflets linear to oblong-lanceolate. 1-2 inches 

 long acute, short-petiolulate. equalling the petioles; flowers bright yellow: 

 sepals ovate-lanceolate, acuminate, glabrous; petals broadly lanceolate, very 

 short clawed, 3-4 lines long: pod 9-15 lines long, about 2 lines broad, 

 torulose, equalling or longer than the stipe. On sandy banks along the 

 Columbia river, and from Wyoming to Colorado and Nevada. 



* * Sepals distinct to the base, deciduous. Petals not distinctly 

 unguiculate. 



