348 LEGUMINOSAE 



type loc. Mt. Pinos, Elmer 4005. Phaca pinosa Rydb. N. Am. Fl. 24:341 (1929). A. hooJcerianus 

 var. pinosua Jcpson, Man. 564 (1925). Var. sonnkanus Jepson. A. sonncanjis Greene, Pitt. 

 3:186 (1897), new name for A. hookcri^nus Gray. Phaca Icnophylla Rydb. N. Am. Fl. 24:341 

 (1929), tvpe loc. Tinker's Knob, Placer Co., Sonne; a synonym as evidenced by the tvpo spni. 

 (N. Y. Bot. Gard.). P. sislciyouensis Rydb. N. Am. Fl. 24:340 (1929), type loc. Mt. Eddy, Siski- 

 you Co., Eastwood 2006; a synonym as evidenced by the tj^pe spm. (N. Y, Bot. Card.). Phaca 

 hookcriana T. &. G. Fl. 1:693 (1840), type from the interior of Ore., Douglas. A. hookerianus 

 Gray, Proc. Am. Acad. 6:215 (1864) ; Jepson, Man. 564 (1925) ; not A. hookerianus Dietr. (1847). 

 Tragacaniha hookeriana Ktze. Rev. Gen. PI. 2:945 (1891). 



2. A. oophorus Wats. Spindle Loco. Stems many from the branched crown 

 of a stout taproot, diffuse or ascending, forming a rounded clump 8 to 11 inches 

 high ; herbage glabrous or essentially so ; leaves 3 to 7 inches long ; leaflets 6 to 9 

 pairs, obovate to oval or suborbicular, obtuse, 2^2 to 6 lines long ; racemes short, 

 7 to 10-flowered, % to 2 inches long ; flowers 6 to 8 lines long ; calyx-tube deeply 

 bowl-shaped, its subulate teeth % as long ; banner light purple, the wings white ; 

 pods strongly inflated, very broadly spindle-shaped, brown-spotted, 1-celled, 1^/2 

 to 1% inches long, 7 lines wide, stiped, the stipe little exceeding the calyx-tube. 



High montane flats and slopes, in rocky places, 7200 to 10,000 feet : Panamint 

 Range ; White Mts. North into Nevada, east to Colorado and Arizona. May (fl.), 

 July- Aug. (fr.). 



Field note. — The small and relatively broad leaflets, bright green and very glabrous, char- 

 acterize the leaves which tend to equal or nearly equal the flowers. The calyx is also quite 

 glabrous. 



Locs. — Telescope Peak, Jepson 7005 ; summit trail, Silver Canon to Big Prospector Mdw., 

 "White Mts., Jepson 7253 ; Crooked Creek ranger sta., White Mts., Duran 1559 ; Benton, Mono Co., 

 Shockley 114. Nev. : Summit sta., w. Mineral Co., ShocMey 357. 



Refs. — Astragalus oophorus Wats. Bot. King 73 (1871), type loc. Reese River Pass, 

 Shoshone Mts., Nev., Watson 278; Jepson, Man. 565, fig. 553 (1925). Tragacantha oophora Ktze. 

 Rev. Gen. PI. 2:947 (1891). Phaca oophora Rydb. N. Am. Fl. 24:338 (1929). Phaca jucunda 

 Jepson & Rydberg, N. Am. Fl. 24:339 (1929), type loc. Telescope Peak, Panamint Range, Jepson 

 7005. A. beckwithii Cov. Contrib. U. S. Nat. Herb. 4:85 (1893), not T. & G., as evidenced by 

 Coville 2022 (U. S. Nat. Herb.). 



3. A. nutans Jones. Nodding Loco. Stem branched from base, 3 to 7 inches 

 high; herbage strigose, gray, in age becoming green; leaves IV2 to 3 inches long; 

 leaflets 9 to 13, oblong, 4 to 7 lines long ; racemes % to 1^/4 inches long, 2 to 5- 

 flowered ; peduncles shorter than the leaves ; flowers 3^2 to 5 lines long ; calyx-teeth 

 narrow, about % as long as the campanulate tube ; corolla dark blue ; pods broadly 

 ovate, strongly inflated, membranous, 1-celled, 10 lines long, nodding, borne on 

 a stipe barely equaling or little exceeding the calyx-tube. 



Dry mesas, 3000 to 5000 feet : Providence Mts., eastern Mohave Desert. May 

 (fr.). 



Refs. — Astragalus nutans Jones, Rev. N. Am. Astrag. 108, pi. 12, fig. 53 (1923), type 

 loc. Providence Mts., T. Brandegee. Phaca nutans Rydb. N. Am. Fl. 24:342 (1929). A. deserti- 

 cola Jepson, Man. 565 (1925), type loc. Providence Mts., T. Brandegee. 



4. A. oxyphysus Gray. Stanislaus Loco. Stems several from the base, rigid, 

 erect, forming narrow compact clumps 2 to 3 feet high ; herbage white-villous when 

 young, soon becoming subglabrate and green ; leaves 3I/2 to 4I/2 inches long ; leaflets 

 15 to 23, oblong to linear-oblong, % to 1^/4 inches long ; racemes dense, 3 to 5 inches 

 long, on peduncles longer than the leaves; flowers 7 to 8I/2 lines long; calyx-teeth 

 triangular-subulate, % as long as the cylindric tube; corolla white or greenish- 

 white; pods semi-obovate (i. e. the ventral suture nearly straight), inflated, 1- 

 celled, 1^ to 2 inches long, with sharply pointed apex, at base attenuate into a re- 

 curved stipe 3 to 4 lines long ; seeds numerous. 



Hill canons and dry plains, 400 to 2000 feet : inner South Coast Range from 

 Stanislaus Co. to San Luis Obispo Co., thence southeast to the upper San Joaquin 

 Valley and Tehachapi foothills. Mar.- Apr. (fl. and fr.) . 



