130 LEGUMINOS^. ldpisl's. 



& 2 PlatycaRpos Watson Proc. Am. Acad, viii, r)88. Flowers 

 in terminal racemes. Sides of the upper petal strongly reflexed. 

 Ovary 2-ovuled. Cotyledons broad and clasping after germina- 

 tion, usually long-persistent. Annuals with cuneate-oblong or 

 obovate leaflets and persistent bracts ; pods ovate. 



t. lnt«oIu> Kell. Proc. Cal. Acad, v, 38. Stout, 1-2 feet high, usual- 

 ly much branched: pubescence short, appressed, rather sUUy: stipuiea 

 petaceous, villous: leaflets usually 7, cuneate-oblong, au inch long or 

 more, the petioles but little longer: racemes short, dense; peduncles ex- 

 ceeding the leaves; bracts linear-setaceous, villous; flowers yellow, b 

 lines long; upper lip of the calyx narrow, about a line long, lower lip 4 

 lines long, upper petal oblong, shorter than the others: pods villous: 

 seeds 2 lines long, black, rough. Southern Oregon to Callfoi-nia. 



li. mlcrocarpus Sims BOt. Mag. t, 2413. Erect and branching, 3—18 

 Inches Mgh, viTious with long spreading hairs: stipules long-setiu;eous: 

 leaves mostly approximate upon the stem, on elongated petioles; leaf- 

 lets 7—11, usually 9, cuneate-oblong, 1—2 inches long, obtuse and mu- 

 cronulate or emargiuate, smooth above: flowers in close verticils, on 

 pedicels 1—2 lines long; bracts subulate-setaceous^ equalling the calyx 

 or shorter; calyx dense villous, lower lip large 3-toothed, the middle 

 tooth small; upper lip very short, sub-scarious, 2-tootlied; petals 

 pui-ple'to white or cream-color, 6—7 lines long, the keel slightly eiliate: 

 pods villous, 8 lines long. On moist slopes, from tiie Columbia nfer to 

 southern California. 



Ii. pusillus Pursh Fl. 468. Rather stout, 3—10 inches high, diffusely 

 branched from the base, hirsute with, long spreading hairs; leaflets 

 usually 5, cunfeate-oblong or oblanceolate, 9—15 lines long, acute or 

 obtuse, nearly glabrous above, about half as long as the i>etioles: 

 racemes short-peduncled or sessile, not exceeding the leaves, 2—3 inches 

 long: pedicels 2—3 lines long; upper lip of the calyx 2-cleft, the lower 

 subentire; petals purple or rose-color. 4 lines long, equal: seeds nearly 

 2 lines broad. On sauuy ptains, eastern AVashington to the Missouri 

 river nnd New Mexico. 



Ii. brevicanlis Watson Bot. King 53, t, 7. Stems short or nearly 

 wanting: leaves 1-4 inches high, pubescent with spreading haire; 

 leaflets mostly 7, cuueate-obovate, 5 — 7 lines long, rounded at the apex: 

 racemes dense, 1—2 inches long, the peduncles nearly equalling the 

 leaves: upper lip of the calyx vei-y short or truncate, scarious, the low- 

 er one subentire: petals blue, 3—5 lines long, equal. Southeastern Ore- 

 gon to Nevada, Arizona and New Mexico. 



3 Ul^EX L. Gen. n. 881. (Fdrze.) 



Compact thorny shrubs with simple prickle-pointed leaf- like 

 olrgans without stipules, and scattered yellow Bowers. Calyx of 

 two nearly or quite distinct yellowish sepals. Petals short, iin- 

 guiculate, subequal the upper one not reflexed. Stamens 10, 

 monadelphous ; anthers in two sets, the outer ones sliort and 

 versatile, the inner long and basifixed. Ovary sessile, niany- 

 ovuled ; style smooth, incurved ; stigma capitate. 



v. Eni-opaeuii L. Sp. 741. A dense shrub 3—6 feet high, the numerous 

 short branches villous, ending in a short spine: lo*er leaves some- 

 times lanceolate, more commonly reduced to spines, 6 lines long: flow- 

 eris 6 lines long, yeiiow, solitary in the axil of a spinesCent leaf, often 

 crowded on the short brauchlets: calyx villpus; upper petal ovate, 

 obtuise, hardly ei-ect: pods few-soeded, but little longer tlian the calyx. 



