Part 2, 1920] FABACEAE: PSORALEAE 127 



petals oblong-oblanceolate, obtuse at the apex, 2.5 mm. long; pod glabrous, obliquely obovoid, 



mm. long. 



Type locality: Brandera County, Texas, at the entrance of Sabinal Canon. 

 Distribution: Known only from the type locality. 



13. Petalostemon glandulosus Coult. & Fisher, Bot. Gaz. 

 18: 299. 1893. 



Petalostemon candidus mullifoliolatus A. Gray, in E. Hall, PI. Tex. 7; hyponym. 1873. 



A perennial, with a woody base; stems striate, leafy, glabrous, 2-6 dm. high, branched; 

 leaves 2-4 cm. long, ascending; stipules subulate-seataceous; leaflets 13-25, oblong or oblong- 

 obovate, 5-8 mm. long, obtuse or retuse, conspicuously black-dotted beneath, dark-green 

 above, paler beneath, glabrous or sparingly pilose above; spikes dense, cylindric, in fruit 8 

 mm. thick, 2-9 cm. long; bracts linear-lanceolate, caudate-attenuate, longer than the calyces 

 and buds, glabrous; calyx rose-tinged, 3-4 mm. long; tube oblique, gibbous on the upper side, 

 glabrous, conspicuously glandular-dotted, not ribbed'; lobes small, all near the lower side, cili- 

 olate on the margins, the lower three lance-subulate, the upper two broadly triangular, with a 

 subulate tip; corolla white; blade of the banner cordate, 3-4 mm. long, 4 mm. wide, the claw 

 fully 3 mm. long; blades of the other petals linear, 3 mm. long, the claws 1.5 mm. long; pod 

 obliquely obovoid, 3 mm. long, pubescent. 



Type locality: Hockly, eastern Texas. 

 Distribution: Texas. 



14. Petalostemon phleoides T. & G. Fl. N. Am. 1: 310. 1838. 



Petalostemon aphleoides Young, Fl. Tex. 221. 1873. 

 Ktthnistera phleoides Kuntze, Rev. Gen. 192. 1891. 



A perennial, branched at the base; stems 3-7 dm. high, simple or branched, striate, gla- 

 brous or nearly so; leaves 3-5 cm. long, ascending; stipules subulate-setaceous; leaflets 13-17, 

 oblong or cuneate-oblong, 5-10 mm. long, usually rounded at the apex, conspicuously glandular 

 beneath, sparingly pilose on both sides; spikes cylindric, dense, in fruit 1.5-6 cm. long, about 

 8 mm. thick; bracts lanceolate, with long, subulate-filiform, long-ciliate tips, much exceeding 

 the calyces or the buds; calyx 3 mm. long; tube turbinate, oblique, glabrous, 10-nerved; 

 lobes near the lower side, similar to those of the preceding species, ciliolate on the margins; 

 corolla white; blade of the banner cordate, 3 mm. long, 3-4 mm. broad, the claw 3 mm. long; 

 blades of the other petals linear or linear-oblanceolate, 3 mm. long, the claws 2 mm. long; pod 

 obliquely obovoid. 



Type locality: Arkansas. 

 Distribution: Arkansas and Texas. 



15. Petalostemon microphyllus (T. & G.) A. Heller, Bull. 

 Torrey Club 26: 593. 1899. 



Petalostemon phleoides microphyllus T. & G. Fl. N. Am. 1 : 310. 1838. 

 Ktthnistera microphylla A. Heller, Bull. Torrey Club 23: 122. 1896. 



A perennial, branched at the woody base; stems erect or ascending, 2-6 dm. high, grooved 

 or striate, more or less pilose, often branched; leaves very numerous, 3-5 cm. long, spreading 

 or ascending; stipules subulate; leaflets 25-37, oblong or oblong-cuneate, 4-6 mm. long, emargi- 

 ate, conspcuously glandular-dotted beneath, more or less pilose or in age glabrate; spikes 

 dense, cylindric, in fruit 8 mm. thick, 2-5 cm. long; bracts linear-lanceolate, densely pubescent, 

 with long subulate tips, persistent, longer than the calyces; calyx 2.5-3 mm. long; tube oblique, 

 gibbous above, densely pubescent; lobes very short, the lower three triangular-ovate; corolla 

 white; blade of the banner cordate, 2 mm. long, 3 mm. wide, the claw 3 mm. long; blades of 

 the other petals linear-oblanceolate, 3 mm. long, the claws 2 mm. long; pod 2-2.5 mm. long, 

 obliquely and very broadly obovoid, pubescent, the beak at right angles to the axis. 



Type locality: Texas. 

 Distribution: Texas. 



