350 LEGUMINOSAE 



T. & G. Fl. 1:336 (1838), type from Cal., Douglas; Jcpson, Fl. W. Mid. Cal. 291 (1901), ed. 2, 

 235 (1911), Man. 565 (1925) ; not A. leucophyllus Willd. (1803). Phaca leucophylla T. & G. Fl. 

 1:694 (1840). A. asymmetricus Sheld. Minn. Bot. Stud. 1:23 (1894). A. leucopsis var. asym- 

 metricus Jones, Contrib. W. Bot. 10:62 (1902). Phaca asymmetrica Eydb. N. Am. Fl. 24:335 

 (1929). Var. brachypus Greene, Pitt. 1:33 (1887), type loc. San Miguel Isl.; not A. brachypus 

 Schrenk (1S41). A. liucojysix var. cin-tus Sheld. Minn. Bot. Stud. 1:134 (1894). Var. cuhtipes 

 Jones, Contrib. W. Bot. 10:62 (1902). A. curUpes Gray, Proc. Am. Acad. 6:217 (1864), type 

 loc. San Luis Obispo, Brewer; Jepson, Man. 565 (1925). Phaca curtipcs Eydb. N. Am. Fl. 

 24:337 (1929). 



6. A. vaseyi Wats. Sentenac Loco. Trainasora. Stems ascending or at 

 length procumbent, IV2 to 3 feet long; herbage silvery-canescent or the upper sur- 

 face of the leaves glabrous; leaves 2V2 to 4 inches long; leaflets 9 to 17, oblong, 5 to 



7 lines long; racemes 1^ to 2^ inches long; flowers 3 to 4 lines long; calyx-teeth 

 subulate, little longer than the tube; corolla purple; pods inflated, narrowly ovate, 

 tapering to a prominently acute apex, 1-celled, canescent, 5 to 8 lines long. 



Dry slopes or in washes, 200 to 3000 feet : desert slopes of the San Jacinto and 

 Cuyamaca mountains. Apr. (fl. and fr.). 



Locs. — Palm Canon of San Jacinto, Jepson 1345; Devils Canon, Santa Rosa Mts., Clary 6; 

 Coyote Canon, sav. of Santa Eosa Mts., Uall 2829; Sentenac Canon, Jepson 12,457; Wagon Wash 

 near Sentenac Caiion, Jepson 8767; Box Cafion, Blair Valley, e. San Diego Co., Jepson 8703; 

 summit of Mountain Springs Canon, Parish 9087; Cuyamaca Mts., Newlon 464; Mountain Springs 

 grade, Peirson 2899. 



Var. deanei Jepson comb. n. Herbage glabrate; corolla white. — Sweetwater Valley, San 

 Diego Co. 



Eefs. — Astragalus vaseyi Wats. Proc. Am. Acad. 17:370 (1882), type loc. Mountain Sprs., 

 e. San Diego Co., Vasey; Jepson, Man. 566 (1925). Phaca vaseyi Eydb. N. Am. Fl. 24:354 

 (1929). A. metanus Jones, Proc. Cal. Acad. ser. 2, 5:666 (1895), type loc. Hanson's ranch, n. 

 L. Cal., Orcutt, not "Brandegee" (type Univ. Cal. Herb.). Phaca metana Eydb. N. Am. Fl. 24: 

 354 (1929). Var. deanei Jepson. Phaca deanei Eydb. I.e. 355, type loc. Sweetwater Valley, San 

 Diego Co., G. C. Deane. 



7. A. crotalariae Gray. Tawny Loco. Stems stout, erect or nearly so, 4 to 

 6 feet high ; herbage glabrous or slightly pubescent, the calyces somewhat villous- 

 pubescent; leaves 3% to 7 inches long; leaflets 19 to 23, narrowly oblong to ovate- 

 oblong, 1/2 to 1 (or lYz) inches long; peduncles shorter than the leaves, bearing 

 dense or rather loosely flowered racemes; flowers 4 to 5 lines long; calyx-teeth 

 triangular-subulate, nearly half as long as the campanulate tube; corolla tawny- 

 yellow; pods of rather parchment-like texture, turgid and much inflated, ovoid, 

 strongly and somewhat abruptly acute at apex, subglabrous or thinly strigulose, 



8 to 11 lines long, 1-celled, the ventral suture projecting slightly inward. 



Washes or dry hill slopes, 1500 to 4300 feet : mountains of eastern San Diego 

 Co. and north to the Conchilla Range. Apr. (fl.), May (fr.). 



Locs. — Eastern San Diego Co.: Eamona, T. Brandegee ; Witch Creek, Alderson; Julian, 

 Jones ; Dulzura, Newlon 349; Grapevine Spr., Jepson 8761. Conchilla Eange: Pinon Well grade, 

 n. of Indio, Jepson 6005. 



Var. piscinus Jepson comb. n. Herbage white or hoary with a short subappressed pubes- 

 cence, tardily glabrate; calyx-teeth narrowly lanceolate or linear, % to % as long as the tube; 

 corolla purple; pods more densely strigulose. — Eastern Colorado Desert (Algodones Sand Hills, 

 Jepson 11,720). South into Lower California. 



Eefs. — Astragalus crotalariae Gray, Proc. Am. Acad. 6:216 (1864), as to the name 

 (but not as to the species), resting on Phaca crotalariae Benth. PI. Hartw. 307 (1848), the 

 type collected by Coulter, undoubtedly in the mountain range on the west side of the Colorado 

 Desert, not "juxta Monterey". It may be noted that a number of Coulter's plants attributed to 

 Monterey, such as Parosela mollis (Benth.) Hel., Astragalus coulteri Benth. and others, were 

 undoubtedly collected in the Colorado Desert. Our identification of Phaca crotalariae Benth. is 

 made at Kew by means of a specimen in the Kew Herbarium received from the Herbarium of 

 Trinity College, Dublin. It is an isotype. We cite also: A. crotalarioides Torr. Bot. Mex. Bound. 

 56, t. 17 (1859), hyponym. A. oocarpus Gray, Proc. Am. Acad. 6:213 (1864), type loc. "moun- 

 tains east of San Diego", Parry; Jepson, Man. 566 (1925). Tragacantha oocarpa Ktze. Eev. 

 Gen. PI. 2:946 (1891). Phaca oocarpa Eydb. N. Am. Fl. 24:343 (1929). Var. piscinus Jepson. 

 A. piscinus Jones, Proc. Cal. Acad. ser. 2, 5:645 (1895), type loc. Lagoon Head, L. Cal., Palmer. 



