Part 7, 1929] FABACEAE: GALEGEAE 383 



1. Phacomene artemisiarum (M. E. Jones) Rydberg. 



Astragalus Beckwithii purpureas M. E. Jones. Zoe 3: 28S. 1893. 

 Astragalus artemisiarum M. E. Jones. Zoe 5: 46. 1900. 

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



A cespitose perennial, with a deep, thick, woody root; stems ascending, 1-3 dm. high, 

 glabrous, striate, often purplish-dotted; leaves ascending, 5-10 cm. long; stipules broadly 

 deltoid, 3-5 mm. long; leaflets 11-21, oval, 5-10 mm. long, 4-8 mm. wide, rounded or retuse 

 at the apex, glabrous; peduncles 5-7 cm. long, glabrous; bracts lanceolate, about 3 mm. long, 

 glabrous; pedicels about 2 mm. long; calyx sparingly black-hairy, the tube 4—5 mm. long, 

 the teeth subulate, 2-2.5 mm. long; corolla purple, with a white spot on the banner, about 2 

 cm. long; banner strongly curved, obovate, retuse at the apex; wings shorter, the blade obliquely 

 oblong-obovate ; keel-petals much shorter, the blade strongly lunate, rounded at the apex; pod 

 lunate in sideview, acuminate at both ends, the stipe 4—5 mm. long, the body 2.5-3 cm. long, 

 mottled, glabrous, the upper suture sharp, with a narrow wing-margin, the lower more or less 

 sulcate, the imperfect septum less than 1 mm. broad. 



Type locality: Deep Creek Mountains, western Utah. 

 Distribution: Western Utah and eastern Nevada. 

 Illustration: M. E. Jones, Rev. Astrag. pi. 22. 



2. Phacomene Beckwithii (T. & G.) Rydb. Am. Jour. Bot. 



16: 205. 1929. 



Astragalus Beckwithii T. & G. Pacif. R. R. Rep. 2: 120. 1855. 



Tragacantha Beckwithii Kuntze, Rev. Gen. 943. 1891. 



Phaca Beckwithii Piper, Contr. U. S. Nat. Herb. 11: 371. 1906. 



A cespitose perennial, from a woody root; stems ascending, 1-5 dm. high, glabrous, sulcate; 

 leaves ascending, 8-15 cm. long; stipules broadly deltoid, 4-6 mm. long; leaflets 17-27, oval or 

 ovate, rounded or retuse at the apex, 5-15 mm. long, 3-10 mm. wide, glabrous; peduncles 7-15 

 cm. long; racemes 4-5 cm. long, many-flowered; calyx glabrous or sparingly black-hairy, the 

 tube 5 mm. long and nearly as wide, the teeth subulate, 4-5 mm. long; corolla ochroleucous, 

 15-18 mm. long; banner broadly obovate, emarginate at the apex; wings slightly shorter, the 

 blade elliptic-lanceolate, with a large basal auricle; keel-petals much shorter, broadly lunate, 

 with a rounded apex; pod glabrous, lunate in outline, mottled, the body about 2 cm. long, 

 tapering at each end, the upper suture wing-margined, the lower often sulcate, with a very 

 narrow partial septum. 



Type locality: Cedar Mountains east of Lone Rock, Utah. 



Distribution: Western Wyoming. Utah, and eastern Nevada. 



Illustrations: M. E. Jones. Rev. Astrag. pi. 22, f. 77; Am. Jour. Bot. 16: pi. 17R. 



3. Phacomene weiserensis (M. E. Jones) Rydberg, sp. nov. 



Astragalus Beckwithii weiserensis M. E. Jones, Zoe S: 47. 1900. 



A cespitose perennial, with a woody root; stems ascending or decumbent, 2-3 dm. high, 

 glabrous, often purple-tinged; leaves ascending, 1-1.5 dm. long; stipules deltoid, 5-10 mm. 

 long; leaflets 13-17, oval or broadly obovate, rounded or retuse at the apex, 1-2 cm. long; 

 peduncles 4-7 cm. long; racemes 4—5 cm. long; bracts broadly lanceolate, S-10 mm. long, 

 twice or thrice as long as the pedicels; calyx glabrous, the tube 5-6 mm. long, the teeth subulate, 

 5-6 mm. long; corolla ochroleucous, about 18 mm. long; petals like those of the preceding 

 species; pod leathery, unmottled or with small and faint blotches, the stipe about 8 mm. long, 

 the body 2.5-3 cm. long, glabrous, the upper suture wing-margined and acute, the lower only 

 slightly sulcate, but the partial septum rather wide. 



Type locality: Weiser, Idaho. 



Distribution: Columbia Basin of Idaho, Oregon, and Washington. 



Illustrations: M. E. Jones, Rev. Astrag. pi. 23; pi. 72, f. 77. 



4. Phacomene pontina Rydberg, sp. nov. 



A cespitose perennial; stems ascending, 2-3 dm. high, sulcate, glabrous; leaves ascending, 

 1-1.5 dm. long; stipules deltoid, 5-S cm. long, green; leaflets 11-15, oval, about 15 mm. long, 



