LOTUS. LEGUMINOS^. 139, 



rachis : peduncles usually exceeding the leaves, with a single nnifoliolate. 

 bract at the summit; flowers solitary, 'Z-'d lines long; teeth of the calyx 

 linear, much longer than the tube, almost equalling the corolla; petals 

 salmon-color, ihn upper one orbicular : pods narrow, somewhat compressed, 

 about an inch long, 5-7-seeded, with very spongy partitions between the 

 oblong black or mottled seeds. Common on bars and gravelly banks of 

 streams. Brit. Columbiato California, Missouri and Arkansas. 



§ '2. A\i80Loxrs Bsriih. as genus. Leaves pinnately 



2-10-folioLate, the leaflets st-attered on a more or less dilated 

 rachis, with gland-like stipules and small flowers on axillary 

 peduncles. Pods promptly deciduous. 



* Annuals: fiowers solitary, on very short pedicels, not bracted : 

 claws of the petals equally approximate t(j each other; the keel nar- 

 rowed above into a somewhat incurved beak: pods'short, not attenu- 

 ate at base, few-seeded, promptly deciduous. 



L. Wrangeliaiius F. &. M. Ind. Sem. Hort. Petrop. 16. RosacUa svh- 

 pinnata T. ifc G. Pilose or subglabrous: stems diffusely branched from the 

 base, 4-6 inches high : leaflets 2-4, all but one on the outside of the rachis. 

 oblong, subglabrous, 4-6 lines long, more or less pilose : flowers sessile or 

 nearly so, about 2 lines long ; teeth of the calyx subulate, several times 

 longer than the tube, ciliate with long spreading hairs, not as long as the 

 yellow corolla : pods pubescent, 6 lines long, nearly obtuse, 5-7-seeded. 

 Southern Oregon to California. 



L. Iiumistratns Greene Pitt, ii, 139. HosacUa brachycarpa BeniJi. 

 t^oftly villous : stems 4-6 inches high, diffusely branched from the base : 

 leaflets usually 4, all but one on the outside ot the rachis 3-6 lines long, 

 obovate to oblong,' acute, flowers sessile, 3-4 lines long, bright }'ellow; 

 calyx-tube very short, its subulate teeth much longer, nearly equalling the 

 corolla: pods 3-4 lines long, oblong, obtusish, very pubesfent, nearly 

 terete, 2-4-seeded. On gravelly bars and banks alon^ streams. Southern 

 Orpgon to California. 



L. denticuhitus Greene 1. o. Ilosackia denticulata Drew. Pale green 

 and glaucous, glabrous or the inflorescence villous : stems erect, sparingly 

 branched, 1-2 feet high: leaflets 2-6, all but one on the outside of the 

 rachis, obovate to oblanceolate, 4-8 lines long, sparingly hairy beneath : 

 flowers 2-3 lines long, solitary, on short axillary pedicels or nearly sessile : 

 calyx deeply o-cleft, its subulate teeth longer than the tube, denticulate, 

 about equalling the corolla ; petals about 2 lines long, pale yellow or sal- 

 mon-color, changing to rich dark red : pods pubescent, very short, 3- 

 seeded. In wet places, Vancouver Island to California. 



* * Peduncles elongated, one to several-flowered, mostly bracted ; 

 claw of the upper petal commonly remote from the others: keel mostly 

 obtuse. 



L. micranthus Bsnth. Trans. Linn. Soc. xvii, 367. Husackia parvi- 

 fiora Benth. Annual: glabrous or nearly so: stems slender, ascending, 

 4-12 inches long, usually branching from the base: leaflets 3-5, obovate to 

 narrowly oblong, 2-S lines long : peduncles longer than the leaves, 1-2- 

 flowered, with a 1-3-foliolate bract at the summit : petals yellow, about 2 

 lines long, keel with a short incurved apex, nearly equalling the wings ; 

 banner obcordate : pods 6-12 lines long, 5-7-seeded, often contracted be- 

 tween the seeds. Common on dry or gravelly plains and hillsides, Van- 

 couver Island to California. 



§ 3 Sykmatium Vogel as Ci^enus. Mostly perennials with 

 pinnately 8-7-foliolate leaves, and gland-like stipules. Pedun- 

 cles umbellately one to several-flouered ; claw of the upper petal 



