356 LEGUMINOSAE 



row-campauulate tube; ecirolla i)urple; pods lanceolate, somewhat curved, some- 

 what obcompressed, membranous, densely hoary-pubescent, grooved dorsally, very 

 slightly if at all inflated, 7 to 9 lines long, the fold in-growing from the dorsal 

 suture, extending nearly to the ventral suture or at least over half way; seeds 8 

 or 10; style slender, persistent in fruit and curved or hooked. 



Gravelly mesas, 50 to 2200 feet : Colorado Desert; eastern Mohave Desert. East 

 to Arizona. Apr. (fl. and fr.). Rarely collected. 



Locs. — Borrego Sprs., T. Brandegee; Kelso, e. Mohave Desert, K. Brandegee. Yuma, Ariz., 

 Peebles 4" Harrison 5029. 



Eefs. — Astragalus agninus Jepson, Man. 577 (1925), type loc. Borrego Sprs., w. Colorado 

 Desert, Jepson 8883. Cystium agninum Rydb. N. Am. Fl. 24:408 (1929). A. lentiginosus var. 

 borreganus Jones, Contrib. W. Bot. 8:3 (1898), type loc. Borrego Spr., Orcutt; Rev. N. Am. 

 Astrag. 126 (1923). 



19. A. lentiginosus Dougl. Spotted Loco. Stems several from the base, 

 branched, 5 to 9 (or 12) inches high; herbage glabrous or sparsely strigose-pubes- 

 cent; leaves 1 to 2V2 inches long; leaflets 11 to 21, oblong to obovate, l^ to ^/^ inch 

 long; peduncles shorter than the leaves, bearing short-oblong densely crowded 

 racemes; flowers 3 to 4 lines long; calyx-teeth lanceolate-subulate, I/2 to nearly as 

 long as the tube; corolla white or purple; pods broadly ovate, rather abruptly 

 pointed, membranous-inflated, glabrous, straw-color (almost as if shining), in- 

 curved, often purplish-mottled, 5 to 7 lines long, more or less grooved along both 

 ventral and dorsal sutures, 2-celled except at apex; seeds many. 



Sandy flats or gravelly plains, 4000 to 6000 feet : eastern Washington and Ore- 

 gon and south to western Nevada. Apr.-May, fr. May-July. 



Locs. — Mathew Valley, e. Ore., Leiberg 2256 ; Malheur region, e. Ore., CusicTc 1942 ; Reno, 

 Nev., T. Brandegee. 



Var. f remontii Wats. Ten to 18 inches high ; herbage finely pubescent, grayish or greenish ; 

 flowers 4 to 5 lines long; calyx-teeth % to ^/^ as long as tube; pods larger (6 to 12 lines long), 

 strigose-pubescent. — Sandy flats and mesas, 2000 to 5000 feet: Mohave Desert and its bordering 

 ranges to Inyo Co. 



Locs. — Olancha, Inyo Co., Almeda NordyJce; Kessler Peak, Ivanpah Range, Jepson 15,833; 

 Calico Wash, n. of Daggett, Jepson 5814; Kramer, Jepson 5326; Tehaehapi, Jones; Mt. Pinos, 

 Eall 6455; Lancaster, Davidson; Swartout Valley, Peirson 3194; Mt. San Antonio, Parish 1918; 

 Bear Valley, San Bernardino Mts., Parish. 



Var. albifolius Jones. Stems prostrate or ascending, 1 to 1^/4 feet high; leaves 1 to 1% 

 inches long, the petioles short (1 to 1% lines) or almost none; leaflets oblong, conduplicate, acute 

 at each end, -whitish-pubescent, 4 lines long ; spikes dense, 6 to 7 lines long, in fruit twice as long ; 

 flowers 3 lines long; pods oval-ovate, acute, 4 to 5 lines long. — Lower Owens Valley (Alabama 

 Hills, Jepson 913) ; western Mohave Desert (Lancaster, K. Brandegee). 



Var. coulteri Jones. Biennial ; similar to var. f remontii ; herbage hoary with a dense cover- 

 ing of short silky appressed hairs ; pods densely pubescent with soft short hairs. — Sandy plains 

 and flats, 50 to 2500 feet: northern Colorado Desert. 



Locs. — Banning, Gilman 47; Whitewater, Jepson 11,631; Palm Sprs., Mt. San Jacinto, Geo. 

 B. Grant; Garnet sta., Riverside Co., J. T. Howell 3439; Palo Verde, Hall 5958. 



Var. nigricalycis Jones. (Fig. 209.) Stems stout, 1 to 1^/4 feet high; herbage pubescent, 

 grayish or greenish ; leaves 2 to 4 inches long ; leaflets 5 to 9 lines long ; flowers 5 to 6 lines 

 long, the calyces usually black-hairy; pods strongly ovate-inflated, tapering to a sharp point, 

 coriaceous and dull, pubescent, 10 to 13 (or 16) lines long. — Temblor Range, south to the San 

 Emigdio and Tehaehapi ranges, and bordering plain of the San Joaquin Valley. 



Locs. — Alcalde, T. Brandegee; Zapato Chino, sw. Fresno Co., T. Brandegee ; Soda Lake, 

 Carrizo Plain, Jepson 16,212; Famoso, Kern Co., Jepson 11,604; Bakersfield, Davy 1714; Wasco, 

 Kern Co., Munz 10,110; Oil City, Kern Co., Heller 7587; Rose sta., Kern Co., Jepson 12,420; San 

 Emigdio Canon, Kern Co., Davy 1982; Tehaehapi Valley, Davy 2184. 



Var. cuspidocarpus Jones. Pods markedly coriaceous, oblong-ovate, a little obcompressed, 

 usually strongly pointed, scantily strigose. — Siskiyou Co. to Modoc and Lassen Cos.; western 

 Fresno Co.: Mayten, Siskiyou Co., Alexander ^ Kellogg 105; Montague, K. Brandegee ; Grenada 

 sta., Siskiyou Co., Heller 8062 ; Goose Lake, Modoc Co., Austin 4" Bruce 2210 ; Dixie Valley, Lassen 

 Co., BaTcer ^ Nutting; Pine Creek, Lassen Co., Baher 4' Nutting ; New Idria, Fresno Co. 



