PSOEALEA. LEGUMINOSiK. 141 



L. Torreyl Greene 1." c. 146. Ilosackia Torrei/i Gray. Minutely pubes- 

 cent : stems rather slender, numerous, from a stout perennial root, 1-2 

 feet high, naostly simple : stipules triangular, a line or more long; leaflets 

 5-i), obovate to narrowly oblanceolate or linear, densely pubescent be- 

 neath, mostly obtuse, 6-12 lines long: peduncles exceeding the leaves; 

 bracts usually tritoliolate : umbels 5-7-flowered; teeth of the pubescent 

 calyx subulate, about as long as the short cam pannlate tube ; petals 6 lines 

 long, the upper one bright yellow, the lateral ones and very obtuse keel 

 white or reddish: pods linear, 1-2 inches long, with an acuminate hooked 

 beak. In spirings and ditches, southwestern Oregon to California. 



Tribe 5. Galegex. Bronn. ('partly) T. <i- Q. Fl. i, 292. Erect 

 herbs, shrubs, or trees with usually unequally pinnate, seldom 

 stipellate leaves ami axillary or terminal, racemose or spi- 

 cate inflorescence. Corolla papilionaceous, or othermise irregxi- 

 lar. Stamens diadelphous or sometimes monadelphous. Pods 

 fiontinuous, rarely with transverse cellular partitions between the 

 seeds, but never separating into joints, 1-relled. several-seeded, de- 

 hiscent, or 1-2-seeded and indehiscenl. Radicl: incurred or in- 

 flexed. 



9 PSOEALEA Royen L. Gen, ed. 2, 358. 



Our species perennial herbs, the herbage punctate with dark 

 glandular 'dots with digitately or pinnately 3-5-foliolate leaves 

 with entire leaflets and free stipules, and white or purple flowers 

 in axillary pedunculate spikes or racemes, mostly with mem- 

 branaceous deciduous bracts. Calyx campanulate, persistent, o- 

 cleft, its teeth nearly equal, or the lower one longest, the two 

 upper ones often connate. Petals free from the stamens ; keel 

 broad and obtuse above, united with the wings. Stamens usually 

 diadelphous, the upper one sometimes united with the others at 

 the base,; anthers uniform, often only 5 perfect. Pods ovate, 

 about as long as the calyx, 1-seeded, indehiscent, thick, often 

 wrinkled. 



* Leaves dtgitately 3-5-foliolate, rarely 7-folioUitc. 



P. lauceolata Pursh. Fl. 475. Aromatic-glandular througliout : stems 

 slender, 12-30 inches high, erect or assurgent, branched, glabrous or with 

 a few scattered hairs: stipules linear-lanceolate to setaceous, 3-6 lines 

 long : petioles 1-2 inches long ; leaves trifoliolate ;, leaflets 1-2 inches long, 

 linear-lanceolate to obovate, acute or obtuse, muoronate, glabrous or with 

 a few hairs : peduncles longer than the leaves ; inflorescence capitate, 

 small ; bracts minute ; flowers nearly white ; calj^x minutely hairy, the 

 lobes nearly equal, obtuse : pods globose, 3 lines long, light with conspicu- 

 ous large raised brown glands, nearly glabrous, beak small and erect: 

 seeds globose, brown. On sandy plains, Oregon and Washington to Iowa 

 and Arizona. 



P. Purshii Tail Bull. Torr. Club, xxi, 94. Glandular throughout; 

 stems assurgent 6-20 inches high or more, from a long slender rootstook, 

 glabrous or somewhat hirsute at base ; scales ovate, scarious : leaves 3- 

 foliocte ; stipules lanceolate, 3-4 lines long ; leaflets 1-2 inches long, obo- 

 vate cuneate or ellii)tical, or the uppermost nearly lanceolate and often 

 much narrower, varying greatly in size and shape, retuse or mucronulate, 

 glandular, glabrous or with a few scattered white hairs : peduncles vary- 

 ing iu length, rarely longer than the leaves: flowers sca,ttered in slender 

 spikes or crowded in nearly capitate . heads ; bracts minute ; lobes of tlve 



