96 NORTH AMERICAN FLORA [Volume 24 



silky, 10-ribbed, 2 mm. long; lobes lanceolate, about 1 mm. long, acute; blade of the banner 

 obovate, subcordate at the base, 2.5 mm. long, the claw 2 mm. long; blades of the wings 2.5-3 

 mm. long, those of the keel-petals broader, apparently distinct, the claws of both 2 mm. long; 

 pod densely pubescent at the summit. 



Type locality: Los Pinitos, Sonora. 

 Distribution: Sonora and Arizona. 



XXX. Pogonatherae. Glabrous herbaceous perennials, with a woody root and often 

 also a short candex. Leaflets comparatively few. Spikes elongate; bracts broadly obovate, 

 conspicuously glandular-punctate, scarious-margined, rather persistent. Calyx silky-villous 

 and glandular-dotted; lobes with triangular bases and subulate or filiform plumose tips. 

 Corolla purple or white. Blade of the banner round-reniform. Wings and keel-petals in- 

 serted near the middle of the staminal tube. Pod densely villous above. 



117. Parosela lasianthera (A. Gray) A. Heller, Cat. N. Am. 

 PL ed. 2. 6. 1900. 



Dalea pogonathera A. Gray, Bost. Jour. Nat. Hist. 6: !75. 1850. Not D. pogonathera A. Gray, 



1849. 

 Dalea lasianthera A. Gray, PI. Wright. 1: 47. 1852. 



A perennial, with a woody root and short caudex; stems 1-3 dm. high, slender, glabrous, 

 almost glandless; leaves 2-3.5 cm. long; stipules subulate, 1-2 mm. long; rachis margined, 

 glabrous, slightly glandular-dotted; leaflets 7-13, linear-oblong or oblanceolate, rounded or 

 retuse at the apex, 5-15 mm. long, glabrous, minutely glandular-dotted beneath; peduncles 

 3-5 cm. long; spikes comparatively dense, 3-6 cm. long; bracts broadly ovate, short-acumi- 

 nate, bluish-green and conspicuously glandular-punctate on the back, somewhat scarious- 

 margined; calyx-tube broadly turbinate, 3 mm. long, silky-villous and glandular-dotted; lobes 

 plumose, with a triangular base and a short subulate tip, 2 mm. long; corolla purple; blade of 

 the banner round-reniform, 4 mm. long, 5 mm. broad; wings and keel-petals inserted a little 

 below the middle of the staminal tube, the blades strongly curved, those of the former 5 mm. 

 long, those of the latter 6 mm. long; pod densely villous above. 



Type locality: San Antonio, Texas. 

 Distribution: Texas to Chihuahua and Tamaulipas. 



118. Parosela pogonathera (A. Gray) Vail, Trans. N. Y. 

 Acad. Sci. 14: 34. 1894. 



Dalea pogonathera A. Gray, Mem. Am. Acad. II. 4: 31. 1849. 



A perennial, with a woody root and short caudex; stems many, ascending or erect, 1-2 dm., 

 seldom 3 dm. high, glabrous, slender; leaves spreading, 1-2 cm. long; stipules subulate- 

 setaceous, 2-3 mm. long; raehis slightly margined, glabrous, glandular-dotted; stipels gland- 

 like; leaflets 5-7, linear-oblong or linear-cuneate, truncate or retuse at the apex, glabrous, 

 glandular-dotted beneath, bluish-green; peduncles opposite the leaves, 1-2.5 cm. long; spikes 

 2-6 cm. long, rather dense; bracts broadly ovate, abruptly short-acuminate, glabrous, scarious- 

 margined, bluish-green and glandular-dotted on the back, persistent; calyx-tube broadly turbi- 

 nate, 3 mm. long, 10-ribbed, silky, not conspicuously glandular-dotted; lobes filiform from a 

 triangular base, silky-plumose, 4 mm. long; corolla purple; blade of the banner rounded reni- 

 form, 2 mm. long, 3 mm. broad, the claw 3 mm. long; wings inserted near the middle of the 

 staminal tube, the keel-petals higher up, the blades of the former 2.5-3 mm. long, the claws 

 1 mm. long; blades of the keel-petals similar but with a comparatively smaller basal lobe, 

 4—4.5 mm. long; pod densely-villous above. 



Type locality: Monterey. Mexico. 



Distribution: Texas to Arizona, Zacatecas, San Luis Potosi, and Tamaulipas. 



