256 LEQUMINOSAE 



11/2 to 3 feet liigh ; liorbafje strigiilose; leaflets 5 to 9, oblong-oblanceolate, obtuse 

 and mueronate, 1 to 2 inches long; petioles % to 2 inolies long; stipules linear or 

 subulate ; racemes mostly sliort-peduncled, lax, 1^2 to 7 inches long, more or less 

 whorled, or the whorls indefinite; flowers 4 to 6 (or 8) lines long; pedicels spread- 

 ing-pubescent, 2 to 3 lines long; calyx with long nearly equal lips; upper lip toothed, 

 the lower entire; petals all narrow, dull white to blue, violet, lilac or purplish, 

 fading brown or sordid; banner ovate-acute, glabrous; keel slender, elongated fal- 

 cate, much exposed, glabrous; pods silky-villous, 1 to 2 inches long, 4 to 5 lines 

 wide; ovules 5 to 7. 



Dry hill slopes and plateaus, in open pine woods and in valleys, 2000 to 8500 

 feet : Sierra Nevada from Tulare Co. to Shasta Co. ; Coast Ranges from Trinity Co. 

 to Siskiyou Co. North to "Washington. June- Aug. 



Locs. — Lupinus albicaulis Dougl., typically of the Columbia Eiver region, is subject to not 

 a little perplexing variation as it ranges southward into California under varying conditions of 

 mountain, plateau, high and low meadoAvs and valleys. Many of these variants have been 

 named as species, but since they are merely variable forms we cite specimens in connection with 

 the named segregates. The following spnis. are fairly typical of L. albicaulis Dougl. in its 

 northern phase, the plants sparsely pubescent and the banner narrow and acute as originally 

 described: Fall Eiver Sprs., ne. Shasta Co., Eall 4" BahcocTc 4204; Battle Creek Mdws., ne. 

 Tehama Co., J. Grinnell; Nevada City, Sonne ; Hockett Mdws., Tulare Co., Eall 4' BahcocTc 5613. 

 Smaller-flowered spms. represent the form called L. sliastensis Hel.: Shasta Sprs., Siskiyou Co., 

 Seller 8024. The var. hyacinthinus Jepson comb. n. (L. formosus var. hyacinthinus C. P. Sm.), 

 with a large roundish banner, is a form common in the southern Sierra Nevada and Southern 

 California mountains: Yosemite Valley, Abrams 4462; Mt. San Jacinto, C. V. Meyer 175; Bear 

 Valley, San Bernardino Mts., Parish 3778; Tamarack Valley, San Jacinto Mts., Hall 2498. 

 A similar usually more pubescent mutation of the Sierra Nevada from Fresno Co. to Tulare Co., 

 with conspicuous foliaceous stipules, represents var. fttlcratus Jepson comb. n. (L. fulcratus 

 Greene) : Kaiser Peak, Fresno Co., Wieslander. Many smaller-flowered Sierra Nevada and 

 Southern California montane plants with rounded banner and shorter usually less exposed 

 keel represent L. andersonii Wats.: Greenhorn Mt., Siskiyou Co., Butler 1349; Poso Creek 

 Mdws., e. Tehama Co., J. Grinnell; Martin Sprs., Eagle Lake, Brown 4" Wieslander 61; Bridal 

 Veil Falls, Yosemite, Eall 8856; Bluff Lake, San Bernardino Mts., Mum 10,524. In the North 

 Coast Ranges several local races may be distinguished. L. sylvestris Drew is a yellow-flowered 

 phase with the banner roundish and the keel sometimes broader and less exposed: Coffee Creek, 

 Salmon Mts., Trinity Co., Eall 8558 ; Dorleska, Salmon Mts., Eall 8610. A large proportion of 

 spms. throughout the range of the group are more pubescent than the usual northern phase of 

 L. albicaulis Dougl. and are here referred to var. proximus Jepson (L. proximus Hel.). The 

 original L. proximus Hel. does not differ materially from the variety proximus Jepson as char- 

 acterized below. In L. adsurgens Drew, a smaller-flowered race of Humboldt Co., specimens from 

 the type locality and occasionally elsewhere have a very narrow aperture between the reflexed 

 banner and the upper margins of the wings: Dinsmore ranch, Van Duzen River valley, Tracy 

 4200; South Fork Mt., Chesnut 4- Drew (type collection) ; Kneeland Prairie, Tracy 7495; "Wilder 

 Ridge, Tracy 6298. The following spm. represents the form called L. formosus var. clemensae 

 C. P. Sm.: Nelson Creek, Plumas Co., Eall 9310. In the Southern California mountains var. 

 proximus passes into var. elatus Jepson, and at lower elevations or in the foothills lying next the 

 valley floors, especially in the Sierra Nevada foothills, intergrades with L. formosus Greene. 



Var. proximus Jepson comb. n. Pubescence dense, sub-silky; flowers 4^/^ to 8 lines long, 

 pale to deep purple (or pale yellow); banner narrowly ovate to roundish; keel often broader 

 with the acumen shorter in proportion and less exposed. — Open slopes or ridges, 2000 to 7400 

 feet: Humboldt Co. to Siskiyou Co.; Sierra Nevada from Plumas Co. to Kern Co.; Southern 

 California in Ventura and San Bernardino Cos. May-June. 



Locs. — Shasta Valley, Siskiyou Co., Butler 709 ; Upton, near Sisson, Jepson 8t ; Mt. Elwell, 

 Plumas Co., Eall 9313; Nevada City, Eeller 8101; Tahoe, Lake Tahoe, Jepson 7723 (somewhat 

 less pubescent, intermediate toward L. shastensis Hel. and L. andersonii Wats.) ; New York 

 Ravine, Eldorado Co., K. Brandegee; Placer Co., M. M. Eardy; Harmon Peak, Calaveras Co., 

 Davy 1418; Jackson (e. of), Eansen 746; Wawona, Mariposa Co., Eall 9006, 8999; Long Mdw. 

 to Mt. Silliman, Jepson 719 ; Colony Mill, Tulare Co., Jepson 635 ; Keene, Kern Co., Eeller 7814 

 (type number L. proximus Hel.) ; Mt. Pinos, Ventura Co., Eall 6509; Baldwin Lake, Bear VaUey, 

 San Bernardino Mts., Chandler 4. 



Var. elatus Jepson comb n. Pubescence densely silvery-silky; flowers 5 to 7 lines long; 

 banner suborbicular, sometimes pubescent dorsally. — Dry coniferous slopes or canons, 6300 to 

 8400 feet : Southern CaUf omia mountains from northern Ventura Co. to the San Bernardino Mts. 



