126 NORTH AMERICAN FLORA [Volume 24 



calyces or the buds; calyx 3 mm. long; tube glabrous, 10-angled; lobes triangular-lanceolate, 

 villous-ciliolate, acute, 1 mm. long; corolla white; blade of the banner reniform-cordate, 2 mm. 

 long, 3 mm. broad, the claw 2.5 mm. long; blades of the other petals oval to oblanceolate, 

 cuneate at the base, 2.5 mm. long, about equaling the claws; pod obliquely obovoid, 3 mm. 

 long. 



Type locality: North America. 



Distribution: Indiana to Mississippi. Texas, and Saskatchewan. 



Illustrations: Michx. Fl. Bor. Am. 2: pi. 37; f. 1; Britt. & Brown, 111. Fl./. 2109; ed. 2./. 2513. 



10. Petalostemon prostratus Wooton & Standley, Contr. 

 U. S. Nat. Herb. 16: 138. 1913. 



A perennial; stem prostrate, 5-8 dm. long, much branched, glabrous, glandular-punctate; 

 leaves 2-4 cm. long, Spreading; petioles as long as the rachis; stipules subulate; leaflets 7-8, 

 crowded, cuneate-oblanceolate, 5-8 mm. long, rounded or retuse at the apex, glabrous, glaucous, 

 conspicuously glandular-dotted; s'pikes short-peduncled, rather lax, cylindric, in fruit 5-10 

 cm. long, 8 mm. thick; bracts broadly lanceolate, acuminate, glabrous, fully as long as the 

 calyces or buds, early deciduous; calyx oblique, 4 mm. long, glabrous, conspicuously glandular- 

 punctate; tube 10-ribbed, especially below; lobes acute, shorter than the tube, ciliolate on the 

 margins, the upper two triangular-ovate, the lower three lanceolate; corolla rose-colored; blade 

 of the banner reniform, 3 mm. long, 4—5 mm. broad, the claw 4 mm. long; blades of the other 

 petals elliptic or elliptic-obovate, 3 mm. long, the claws 0.5 mm. long; pod glabrous, 3.5 mm. 

 long, obliquely obovate, almost semiorbicular. 



Typb locality': Albuquerque. New Mexico. 

 Distribution: New Mexico. 



11. Petalostemon foliosus A. Gray, Proc. Am. Acad. 

 7: 336. 1868. 



Kuhnislera foliosa Kuntze. Rev. Gen. 192. 1891. 



A perennial, with a woody base; stem stout, 3-10 dm. high, glabrous, striate, branched 

 above; leaves numerous, ascending, 3-5 cm. long; stipules subulate-setaceous; leaflets 13-31, 

 oblong or oblong-oblanceolate, bright-green above, paler beneath, glabrous, mucronate, 6- 

 10 mm. long; spikes many, short-peduncled, cylindric, dense, in fruit 1 cm. thick, 2-5 cm. long; 

 bracts lanceolate, glabrous, with subulate tips, much surpassing the calyces and the buds, per- 

 sistent or tardily deciduous; calyx 4 mm. long; tube glabrous, 10-ribbed, slightly oblique; lobes 

 1.5 mm. long, acute, ciliolate on the margins, the lower three triangular-lanceolate, the upper 

 two triangular-ovate ; corolla white ; blade of the banner suborbicular, retuse at the apex, sub- 

 cordate at the base, 2-2.5 mm. long, the claw 2.5-3 mm. long; blades of the other petals oblong, 

 2.5-3 mm. long, cuneate at the base, the claws short, scarcely 0.5 mm. long; pod obliquely 

 obovoid, 3 mm. long, glabrous, the beak ascending. 



Type locality: Banks of Fox River, Kane county, Illinois. 



Distribution: Illinois to Tennessee. 



Illustrations: Britt. & Brown, 111. Fl./. 2114; ed. 2./. 2518. 



12. Petalostemon sabinalis S. Wats. Proc. Am. Acad. 21: 448. 

 1886. 



Petalostemon luteolus S. Wats.; A. Heller, Bull. Torrey Club 23: 122, as synonym. 1896. 

 Kuhnislera sabinalis A. Heller, Bull. Torrey Club 23: 124. 1896. 



A perennial, woody only at the base; stems ascending, 2-4 dm. high, glabrous, somewhat 

 striate; leaves yellowish-green, about 3 cm. long; leaflets 11-15, linear or linear-oblanceolate, 

 10-15 mm. long, flat, glandular-dotted beneath, blunt, glabrous; spikes cylindric, in age 4-6 

 cm. long, 1 cm. thick; bracts lanceolate, acuminate, glabrous, deciduous, about equaling 

 the calyces; calyx 3 mm. long; tube glabrous, 10-ribbed, with conspicuous yellow glands; 

 lobes short, triangular, ciliolate, acute; corolla rose-colored; blade of the banner broadly cor- 

 date, notched at the apex, 2 mm. long, 3 mm. wide, the claw 2 mm. long; blades of the other 



