PEA FAMILY 265 



Eefs. — LuPiNUS LAXirLORUS Dougl. ; Lindl. Bot. Eeg. t. 1140 (1828), type loc. "great rapids 

 of Columbia Eiver", Douglas. L. muUitinctus Nels. Bot. Gaz. 53:221 (1912), type loe. Big 

 Willow near Falk's store, Canon Co., Ida., Macbride 114. L. variegatus Hel. Muhl. 8:89 (1912), 

 type loc. Euby Mts., near Deeth, Elko Co., Nev., Heller 10,551. L. laxiflorus var. silvicola C. P. 

 Sm.; Jepson, Man. 527 (1925). L. silvicola Hel. Muhl. 6:81, fig. 12 (1910), type loe. Summit, 

 Placer Co., Heller 9857; banner not pubescent on back (ex char.) but spms. determined by 

 Heller as L. silvicola have the banner pubescent on the back (Truckee; Independence Lake). 

 L. laxiflorus var. cognatus C. P. Sm.; Jepson, Man. 527 (1925), type loc. Wallowa Mts., Ore., 

 Cusiclc 3187. Var. calcaratus C. P. Sm. Bull. Torr. Club 51:304 (1924); Jepson, Man. 526 

 (1925). L. calcaratus Kell. Proc. Cal. Acad. 2:195, fig. 60 (1863), type doubtless from Cal. 

 Var. CORYMBOSUS Jepson. L. corymbosus Hel. Muhl. 2:69 (1895), type loe. Montague, Siskiyou 

 Co., Heller 8015; Jepson, Man. 527 (1925). Var. inyoensis Jepson. L. inyoensis Hel. Muhl. 

 2:211 (1906), Sierra Nevada foothills w. of Bishop, Inyo Co., Heller 8312. L. inyoensis var. 

 eriocalyx C. P. Sm.; Jepson, Man. 527 (1925), type loc. e. of the Minarets, Madera Co., Cong- 

 don; calyx woolly-viUous ; banner woolly-pubescent on the back. 



23. L. caudatus Kell. Silk Lupine, Herbage appressed-silky or satiny; 

 calyx densely silky-tomentose, its lips subequal, about % as long as the petals; 

 otherwise like L. laxiflorus Dougl. 



Open dry slopes, 4000 to 8000 feet : foothills on east side of the Sierra Nevada 

 from Inyo Co. to Modoc Co., thence west to Siskiyou Co. Western Nevada and 

 eastern Oregon to southwestern Idaho. Maj^-July. 



Locs. — Maturango Peak, Argus Kange, Purpus 5451; Lake Sebrina, Inyo Co., Davidson 

 2877; Mono Lake, Congdon; Boca, Nevada Co., Sonne; Portola, K. Brandegee; Honey Lake, 

 T. Brandegee; Big Valley near Bieber, Lassen Co., Baker ^ Nutting; Silver Creek, Warner Mts., 

 L. S. Smith 1035; Pine Creek, Warner Mts., L. S. Smith 974; Mt. Bidwell, Warner Mts., Jepson 

 7856; Goosenest foothills, e. Siskiyou Co., Butler 917. 



Kefs.— LuPiNUS CAUDATUS Kell. Proc. Cal. Acad. 2:197, fig. 61, (1863) ; Jepson, Man. 527 

 (1925). L. argentinus Eydb. Bull. Torr. Club 30:257 (1903), type loc. Keno, Nev. (not "Utah"), 

 S. G. Stolces. 



24. L. ludovicianus Greene. Bishop Lupine. Stems leafy, branching from 

 a woody base, 1 to l^^ feet high; herbage densely tomentose, the stems and petioles 

 with some spreading hairs, the leaflets closely lanate; leaflets 4 to 8, oblong-obovate 

 or oblanceolate, obtuse or acute, % to 11/2 inches long; petioles 1 to 4 inches long; 

 racemes somewhat loose, 3 to 10 inches long, on rather long peduncles; flowers 414 

 to 5 lines long, scattered or subverticillate, on pedicels 1 to 2 lines long; calyx-lips 

 nearly equal, the upper bifid, the lower 3-toothed; corolla dark blue or purple; keel 

 ciliate; pods densely pubescent, % to 1 inch long, 4 to 6-seeded. 



Caiions, 50 to 1500 feet : western San Luis Obispo Co: May. 



Locs. — Price Canon near San Luis Obispo, K. Brandegee Sr I. J. Condit; Arroyo Grande, 

 Alice King. 



Eefs.— LuPiNUS LUDOVICIANUS Greene, BuU. Cal. Acad. 1:184 (1885), type loc. mts. above 

 San Luis Obispo, Curran; Jepson, Man. 527 (1925). 



25. L. breweri Gray. Mat Lupine. Dense prostrate mats Yq to 3 feet broad, 

 the flowering stems 2 to 5 inches high, arising from a much-branched woody root- 

 crown; herbage densely silvery-silky, the hairs appressed; leaflets 6 to 10, obovate 

 to oblanceolate, obtuse (but often with an apiculate tuft of hairs), 3 to 6 (or 8) 

 lines long, about 1/2 to l^ as long as the petioles; racemes commonly somewhat dense, 

 % to 3 inches long, the peduncles shorter than or exceeding the leaves; flowers 3 to 

 4 lines long; bracts short, deciduous; calyx-lips nearly equal, the upper deeply 

 bifid, the lower minutely toothed or entire; petals blue, equal, 3 to 4 lines long; 

 banner with a large white spot; keel broad, only slightly ciliate on upper part or 

 near the middle or glabrous; pods 6 to 9 lines long, 2 or 3-seeded. 



Rocky mountain summits, 6000 to 11,000 feet: San Gabriel Mts.; San Bernar- 

 dino Mts.; Sierra Nevada from Tulare Co. to Lassen Co.; White Mts.; Siskiyou 

 Co. June-July. 



Locs.— S. Cal. : Mt. Waterman, San Gabriel Mts., Peirson 2441 ; Bear Valley, San Bernar- 

 dino Mts., Parish 3737. Sierra Nevada: White Chief Peak, Tulare Co., Culbertson 4401; Big 



