Part 6, 1929] FABACEAE: GALEGEAE 343 



27. Phaca oocarpa (A. Gray) Rydberg. 



Astragalus Crotalariae Torr. Bot. Mex. Bound. Surv. 56. 1859. Not Phaca Crotalariae Benth. 



1848. 

 Astragalus crotalar hides Torr. Bot. Mex. Bound. Surv. pi. 17, hyponym. 1859. 

 Astragalus oocarpus A. Gray, Proc. Am. Acad. 6: 213. 1864. 

 Tragacanlha oocarpa Kuntze, Rev. Gen. 946. 1891. 



Perennial; stem 1-2 m. high, sulcate and angled, glabrous or nearly so, sometimes tinged 

 with purple, branched; leaves ascending, 8-15 cm. long; stipules deltoid, 3-4 mm. long; leaflets 

 15-21, oval, rather thick, 1-2 cm. long, 5-10 mm. wide, glabrous or nearly so, rounded or retuse 

 at the apex; peduncles 5-7 cm. long; racemes lax, 9-12 cm. long; bracts lanceolate, 1-2 mm. 

 long; flowers ascending, with very short pedicels; calyx-tube 4 mm. long, finely pubescent, the 

 lobes triangular, 1 mm. long; corolla ochroleucous; banner obovate, 10-12 mm. long; wings 

 decidedly shorter, the blade oblong-lunate, with a reflexed basal auricle, obtuse, fully as long 

 as the claw; keel-petals broader, more curved; pod erect, glabrous, rather firm, ovoid, short- 

 acute at the base, more tapering at the apex, 2.5 cm. long, fully 1 cm. wide; seeds obliquely 

 reniform. 



Type locality: Mountains east of San Diego, California. 



Distribution: San Diego County. California. 



Illustrations: Torr. Bot. Mex. Bound. Surv. pi. 17; M. E. Jones, Rev. Astrag. pi. 14, f. 60. 



28. Phaca pseudoocarpa Rydberg, sp. nov. 



Perennial; stem 5-10 dm. high, striate, glabrous, branched; leaves spreading, 6-10 cm. 

 long; stipules deltoid, reflexed, 3-4 mm. long; leaflets 19-25, rather firm, elliptic or oblong, 

 7-15 mm. long, glabrous on both sides, or sparingly hairy when young on the midrib and 

 margins beneath, rounded, truncate, or retuse at the apex; racemes including the peduncle 

 about 15 cm. long, spieading, arcuate, laxly flowered above the middle, glabrous; bracts subu- 

 late, 2 mm. long; calyx silky-strigose, the tube 3 mm. long, the teeth broadly deltoid, scarcely 

 1 mm. long; corolla ochroleucous, 8-9 mm. long; banner obovate, strongly reflexed; wings 

 somewhat shorter, the blades obliquely obovate, with a large basal auricle; blades of the keel- 

 petals broadly lunate; pod broadly ellipsoid, 3-4-5 cm. long, about 2 cm. wide, sparingly pu- 

 bescent, comparatively firm. 



Type collected in the Cuiamaca Mountains, southern California, 1875. Palmer 68 (herb. N. Y. 

 Bot. Gard.). 



Distribution: Southern California. 



29. Phaca vallicola Rydberg, sp. nov. 



Perennial, often cespitose at the base; stems 3-4 dm. high, striate, glabrous; leaves 

 ascending, 7-10 cm. long; stipules deltoid, 3-4 mm. long; leaflets 13-19, elliptic or oblong, 

 8-20 mm. long, glabrous above, sparingly strigose and glabrate beneath, often retuse at the 

 apex; racemes 5-S cm. long, somewhat arcuate; bracts subulate 2 mm. long; calyx silky- 

 strigose, the tube 4 mm. long, the teeth deltoid, about 1 mm. long; corolla ochroleucous, 8-9 

 mm. long, like that of the pieceding; pod sparingly pubescent, broadly ellipsoid, 4-5 cm. long, 

 2-2.5 cm. wide. 



Type collected in Bear Valley, San Bernadino Mountains, 1886. 5. B. &> W. F. Parish 1407 D 

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



Distribution: Mountains of southern California. 



30. Phaca topoensis Rydberg, sp. nov. 



Perennial, low, perhaps 3 dm. high; stem striate, glabrous, flexuose; leaves 8-10 cm. long, 

 ascending; stipules deltoid, 2-3 cm. long; leaflets 17-21, linear-oblong, acute, 10-20 mm. long, 

 2-4 mm. wide, glabrous above, spaiingly strigose beneath; racemes 8-12 cm. long, laxly flowered 

 above the middle; bracts subulate, 2 mm. long; calyx strigose, the tube 3-3.5 mm. long, the 

 teeth deltoid, about 1 mm. long; corolla ochroleucous, 7-8 mm. long; banner obovate, strongly 

 reflexed; wings and keel-petals shorter, like those of P. oocarpa; pod semi-ellipsoid, about 4 cm. 

 long, less than 2 cm. wide, sparingly pubescent, the upper suture nearly straight. 



Type collected at Topo, Lower California, October, 1882, Orcutt 621 (Gray Herb.). 



