324 NORTH AMERICAN FLORA [Volume 24 



lunate, with a rounded apex; pods linear-oblong, cylindric, 12-15 mm. long, about 3 mm. wide 

 and thick, glabrous, the stipe scarcely 1 mm. long, much shorter than the calyx-tube. 



Type collected in the White Mountains, Lincoln Countv, New Mexico, Julv 26, 1897, E. 0. 

 Wooton 213 (herb. N. Y. Bot. Card.). 



Distribution: White Mountains, New Mexico, and apparently also Elk Mountains, Utah. 



3. Pisophaca ratonensis Rydberg, sp. nov. 



A perennial, with a woody root and cespitose caudex ; stems ascending or decumbent at the 

 base, branched, 2-3 dm. high, grayish-strigose; leaves ascending, 3-5 cm. long, the rachis 

 strigose; stipules lanceolate or deltoid, acuminate, 4-5 mm. long; leaflets 11-19, linear or oblong, 

 or those of the lower leaves cuneate-obovate, 4-12 mm. long, 2-3 mm. wide, glabrous above, 

 strigose-canescent beneath, obtuse to truncate or emarginate at the apex; peduncles 3-7 cm. 

 long; racemes 2-5 cm. long, bracts lance-subulate, 2-3 mm. long; pedicels 1 mm. long; calyx 

 strigose-canescent, the tube 3 mm. long, 2 mm. broad, the teeth lance-subulate, 1.5 mm. long; 

 corolla dark-purple, only the claws paler, about 1 cm. long; banner broadly obovate, rather 

 strongly arcuate at the middle; wings nearly as long, the blade oblong-oblanceolate, slightly 

 falcate, obtuse, with a long reflexed auricle; keel-petals much shorter, the blade broadly lunate, 

 strongly arched towards the rounded apex, with a smaller auricle; pod strigose, mottled with 

 purple or brown, the stipe about 0.5 mm. long, the body oblong, acute at each end, 15-18 mm. 

 long, 4 mm. wide, and nearly as thick, nearly round in cross-section. 



Type collected at Des Moines, Union County, New Mexico, June 14, 1924, Eggleston 20114 

 (herb. N. Y. Bot. Card.). 



Distribution: New Mexico. 



4. Pisophaca Diehlii (M. E. Jones) Rydberg. 



Astragalus Diehlii M. E. Jones, Rev. Astrag. 194. 1923. 



A perennial, with a woody root; stems several, ascending, branched, flexuose, strigose- 

 canescent; leaves spreading, 3-7 cm. long; stipules broadly deltoid, 2-3 mm. long; leaflets 

 11-19, linear to cuneate, 7-15 mm. long, 2-4 mm. wide, often conduplicate, obtuse or rounded 

 at the apex, glabrous above, strigose beneath; peduncles 3-5 cm. long; racemes 2-5 cm. long; 

 bracts lanceolate, 1-2 mm. long; pedicels 2 mm. long; calyx strigose, the tube 2 mm. long and 

 broad, the teeth subulate, 1 mm. long; corolla white, about 8 mm. long; banner broadly obovate, 

 abruptly arched at the middle; wings nearly as long, the blade oblong-oblanceolate, strongly 

 falcate, with a large reflexed auricle; keel-petals much shorter, the blade broadly lunate, the 

 margin strongly arched towards the rounded apex; pod subsessile, oblong, abruptly acute at 

 each end, strigose, 1-1.5 cm. long, 3-3.5 mm. wide and thick; seeds brown, obliquely reniform, 

 3 mm. long, 2 mm. wide. 



Type locality: Farnham. Utah. 



Distribution: Eastern Utah and western Colorado. 



Illustration: M. E. Jones, Rev. Astrag. pi. 43, f. 154. 



5. Pisophaca flexuosa (Dougl.) Rydberg. 



Phaca flexuosa Hook. Fl. Bor. Am. 1: 141. 1831. 



Astragalus flexuosus Dougl.; Hook. Fl. Bor. Am. 1: 141, as synonym. 1831. 



Phaca Fendleri A. Gray, Mem. Am. Acad. II. 4: 36. 1849. 



Astragalus Fendleri A. Gray, PI. Wright. 2: 44. 1853. 



Tragacantha Fendleri Kuntze, Rev. Gen. 944. 1891. 



Tragacantha flexuosa Kuntze, Rev. Gen. 945. 1891. 



Astragalus flexuosus Fendleri M. E. Jones, Contr. W. Bot. 10: 62. 1902. 



Homalobus flexuosus Rydb. Bull. Torrey Club 32: 666. 1906. 



Homalobus Fendleri Rydb. Bull. Torrey Club 32: 667. 1906. 



A perennial, with a branched rootstock; stems from erect to decumbent, branched, some- 

 times flexuose, strigose-canescent, leafy; lower stipules broadly deltoid, acuminate, connate, 

 more or less scarious, the upper ones lanceolate, distinct, strigose; leaves 4-10 cm. long, spread- 

 ing; leaflets 15-25, oblong or rarely obovate, acute at the base, obtuse to retuse at the apex, 

 5-18 mm. long, 1-4 mm. wide, strigose beneath, glabrous above; peduncles 5-10 cm. long; 

 racemes about as long, lax; bracts subulate, 2 mm. long; calyx strigose, the tube 3 mm. long, 



