318 NORTH AMERICAN FLORA [Volume 24 



oblong, about 1.5 cm. long, acutish at each end, coriaceous, strigose, wrinkled, the uppe. suture 



prominent, the lower one inflexed, sulcate. 



Type locality: Fort Wingate, New Mexico. 



Distribution: New Mexico. 



Illustration: M. E. Jones, Rev. Astrag. pi. 28, f. 94 (faulty). 



9. Batidophaca gilensis (Greene) Rydberg. 



Astragalus gilensis Greene, Bull. Torrey Club 8: 97. 1881. 



A subacaulescent perennial, with a densely cespitose caudex; stems very short, ascending 

 or decumbent; leaves ascending, 2-6 cm. long; stipules deltoid, canescent; leaflets 15-19, 

 elliptic or oblong, obtuse or acute, silvery-canescent, 5-10 mm. long; peduncles 3-7 cm. long; 

 raceme head-like; bracts lance-linear, 3-4 mm. long; calyx silky-canescen c, the tube about 3 

 mm. long, the teeth subulace, 1.5-2 mm. long; corolla ochroleucous, white or purple, 7 mm. 

 long; banner rounded-obovate, abruptly arched, retuse; wings nearly as long, the blade oblong, 

 falcate; keel-petals broadly lunate, the blade abruptly arched at the middle; pod 7-8 mm. long, 

 3 mm. wide, somewhat laterally compressed, slightly arcuate, abruptly acute, scrigose, both 

 sutures acute. 



Type locality: Mouth of the canon of Gila River, New Mexico. 

 Distribution: New Mexico and Arizona. 

 Illustration: M. E. Jones, Rev. Astrag. pi. 6, f. 20. 



2. Sesquiflorae. Low tufted cespuose plant, with numerous short stems; leaflets narrowly 

 oblaneeolate to linear-subulate; racemes few-flowered; calyx acute at the base, the lobes 

 elongate and more or less upcurved; pod stiigose, leathery, mottled. 



10. Batidophaca sesquiflora (S. Wats.) Rydberg. 



Astragalus sesquiflorus S. Wats. Proc. Am. Acad. 10: 346. 1875. 

 Tragacantha sesquiflora Kuntze, Rev. Gen. 948. 1891. 

 Phaca sesquiflora Rydb. Bull. Torrey Club 40: 48. 1913. 



A densely tufced perennial, with a deep taproot, and multicipital caudex; stems numerous, 

 3-10 cm. long, ashy-canescent ; leaves ascending, 2-5 cm. strigose, brownish, 2-5 mm. long; 

 leaflets 7-11, narrowly oblaneeolate or nearly linear, 3-8 mm. long, acute at each end, stngose- 

 canescent; peduncles 1-3 cm. long, slender; lacemes 1-4; bracts subulate, 2 mm. long, longer 

 than the pedicels; calyx strigose, the tube tuibinate, 3 mm. long, the teeth subulate, unequal in 

 length, the lowest fully as long as the tube, the upper shorter, all arcuate; corolla purple, 6-8 

 mm. long; banner broadly obovate, strongly arched; wings shorter, strongly arcuate, the blades 

 oblaneeolate, obtuse, with a large auiicle; keel-petals shorter, the blade lunate, long-acute; 

 pod semi-obovate, strongly arcuate, broader towards the apex, 1 cm. long, 3 mm. wide, strigose 

 and mottled, abruptly cuspidate, the lower suture sulcate two thirds its length, but acute 

 towards the apex, the cross-section broadly cordate. 



Type locality: Southern Utah. 



Distribution: Southern Utah and northern Arizona. 



Illustration: M. E. Jones, Rev. Astrag. pi. 6, f. 18. 



3. Villosae. Perennial herbs, usually with short, decumbent stems. Stipules narrow, 

 distinct or nearly so. Flowers in short racemes on elongate peduncles. Calyx with a cam- 

 panulate tube and rather long lobes. Corolla white, cream-colored, or purplish. Pod mem- 

 branous or in B. Parryi leathery or coriaceous, more or less lunate in side-view, acute on the 

 upper suture, rounded or somewhat inflexed along the lower. 



1 1 . Batidophaca Parryi (A. Gray) Rydberg. 



Astragalus succumbens T. & G. Pacif. R. R. Rep. 2: 163. 1855. Not. A. succumbens Dougl. 1831. 

 Astragalus Parryi A. Gray, Am. Jour. Sci. II. 33: 410. 1862. 

 Tragacantha Parryi Kuntze, Rev. Gen. 947. 1891. 

 - Xylopbacos Parryi Rydb. Bull. Torrey Club 32: 662. 1906. 



A perennial, with a taproot and short caudex, densely cespitose; stems numeious, decum- 

 bent, 1-2 dm. long, pilose with long slender spreading hairs; leaves spreading, 5-12 cm. long; 



