PEA FAMILY 273 



Sm. appears to be a shade form, while in var. umbellatus C. P. Sm., of the arid Santa Cruz Isl., 

 the whorls are reduced to 1 or 2. Blue, pink and white-flowered individuals of L. bicolor are not 

 infrequently found together in one small colony of a given strain, the plants evidently being of 

 common parentage. The specimens cited below are fairly typical of the species. 



Locs. — S. Cal. : Vallecito, e. San Diego Co., Jepson 8544; Descanso, San Diego Co., Muns 

 4- Harwood 7138; Colton, Parish; Los Angeles, Davidson; Henniger Flats, San Gabriel Mts., 

 Peirson 91. Sierra Nevada foothills: Kaweah, TV. Fry; Limekiln Creek, Tulare Co., Jepson 

 2803; Pinehurst, Newlon 178; Table Mt., Fresno Co., Jepson 15,127; Fresno Flats, Madera Co., 

 Jepson 12,852; Chowchilla School, Mariposa Co., Jepson 12,793; Columbia, Tuolumne Co., A. L. 

 Grant 684; Salmon Falls, Eldorado Co., Jepson 15,753. Great Valley: Bena, Kern Co., Jepson 

 11,614; Berenda, Madera Co., Jepson 15,160; Patterson, Stanislaus Co., Jepson 11,570; Knights 

 Ldg., Yolo Co., Nutting; Sutter plains, Marysville Buttes, Jepson 13t; Crane Creek hills, w. 

 Tehama Co., Jepson 3t. Coast Eanges: Zapato Chino, sw. Fresno Co., Jepson 15,379; Priest 

 Valley, San Benito Co., Jepson 2685 ; Cholame VaUey, Jepson 15,406 ; San Miguelito Eancho, 

 Jolon, Jepson 1635 ; Mt. Davidson, San Francisco, Jepson 10,361 ; Alameda, Jepson, 49t ; Mill 

 Valley, Marin Co., Jepson 31t; Conn Valley, Napa Eange, Jepson 6265; St. Helena, Clara Hunt; 

 Sonoma Valley, Jepson 5802 ; Bucksport, Humboldt Co., Tracy 838 ; Yreka, Butler 1190. 



Var. trifidus C. P. Sm. Lower lip 3-cleft halfway. — Sandy soil, near the coast, San Fran- 

 cisco to Monterey; Alameda, Greene; San Francisco, Davy 1169; Pacific Grove, Tidestrom. 



Var. rostratus Jepson comb. n. Flowers small (2 lines long) ; upper calyx-lip very deeply 

 cleft, the teeth displaced and approximating those of the lower lip, so that the upper lip appears 

 to be absent ; banner ovate ; wings narrow, produced into slender points which become revolute ; 

 keel with a slender beak. — Estrella plain, San Luis Obispo Co., Jared. 



Eefs. — LupiNUS BICOLOR Lindl. Bot. Eeg. t. 1109 (1827), type loc. "interior ... from Ft. 

 Vancouver to the branches of Lewis and Clarke's Eiver", Douglas; Jepson, Man. 522 (1925). 

 L. viicranthus var. hicolor Wats. Proc. Am. Acad. 8:536 (1873) ; Jepson, Fl. W. Mid. Cal. 317 

 (1901), ed. 2, 219 (1911). L. saiulosus Hel. Muhl. 7:9 (1911), type loc. Marine Hospital, San 

 Francisco, Heller 6627. L. strigulosus Gandg. Bull. Soc. Bot. France 60:461 (1913), type loc. 

 Bingen, Wash., Suksdorf 5928. L. bicolor var. umbellatus C. P. Sm. Bull. Torr. Club 50:377 

 (1923) ; Jepson, Man. 523 (1925). L. umbellatus Greene, Bull. Cal. Acad. 2:145 (1886), type 

 loc. Santa Cruz Isl. (racemes with a single whorl). L. bicolor var. tridentatus Eastw. ; C. P. Sm. 

 Bull. Torr. Club I.e., type loc. Santa Eosa, Sonoma Co., Eastwood 10,369 (lower calyx-lip triden- 

 tate). L. bicolor var. pipersmithii C. P. Sm. I.e. 380; Jepson, Man. I.e. L. pipersmithii Hel. 

 Muhl. 7:93, figs. 16, 17 (1911), type loc. Cedro Cottage field, near Stanford, San Mateo Co., C. P. 

 Smith 1403 (keel non-ciliate). L. bicolor var. microphyllus C. P. Sm. I.e. 382 (flowers 2 to 2^/^ 

 lines long) ; Jepson, Man. I.e. fig. 519. L. micranthus var. microphyllus Wats. Proc. Am. Acad. 

 8:535 (1873), type loc. San Diego. L. bicolor var. tetraspermus C. P. Sm. I.e. 385, type loc. 

 Wright, Santa Clara Co., C. P. Smith 3405 (pods regularly 4-seeded) ; Jepson, Man. I.e. Var. 

 TRIFIDUS C. P. Sm. I.e. 386 ; Jepson, Man. I.e. L. micranthus var. trifidus Wats. I.e., type loc. San 

 Francisco, "various collectors and recently . . . Vasey" (lower calyx-lip trifid) ; Jepson, Fl. W. 

 Mid. Cal. 318 (1901), ed. 2, 219 (1911). Var. rostratus Jepson. L. rostratus Eastw. Proc. Cal. 

 Acad. ser. 2, 6:424, pi. 56 (1896), type loc. Estrella, L. Jared. 



35. L. micranthus Doug-l. Field Lupine. Stem with several or many stout- 

 ish branches from the base or above the middle, 6 to 11 inches high; herbage some- 

 what succulent, pubescent; leaflets 6 to 8, linear-oblanceolate, % to 1 inch long; 

 racemes narrow, short (1 to 2^/4 inches long), the few whorls remote or the flowers 

 somewhat scattered; pedicels 1 line long, ascending; upper calyx-lip deeply 2-cleft, 

 the lobes ovate or lanceolate, the lower lip entire or obscurely dentate, somewhat 

 longer; flowers II/2 to 3 lines long; corolla deep blue; banner obovate, retuse or 

 truncate, the center white with dark dots, changing to red-purple, the sides in- 

 curved, not reflexed; keel nearly straight, obscurely ciliate below the apex; pods 

 rigid, lightly falcate, 8 to 12 lines long, 6 to 9-seeded. 



Rich or clay soils of plains or low valleys, 10 to 3300 feet : San Diego Co. to the 

 San Francisco Bay region (where frequent) and north to Humboldt Co., thence 

 east to Plumas and Modoc Cos. Far north to British Columbia. Apr.-May. 



Locs.— Adin, Modoc Co., L. S. Smith 918 ; Bucksport, Humboldt Co., Tracy 3251 ; Calistoga, 

 C. F. Baker 1988 ; Crystal Springs Lake, C. F. Baker 1931 ; Howell Mt., Jepson 10,317 ; Vacaville, 

 Jepson lot ; Mt. Davidson, San Francisco, Jepson 10,354 ; Purisima Hills, Santa Barbara Co., 

 Jepson 12,655; Hemet, w. Eiverside Co., C. F. Baker 4100; Mesa Grande, San Diego Co., F. Fer- 

 guson 23. 



Var. congdonii C. P. Sm. Plants erect, 2 to 3 inches high ; leaflets spatulate, pubescent both 

 sides, 2 to 3 lines long, on petioles 5 to 12 lines long; racemes few-flowered, % to 1 inch long. — 

 Mariposa Co. (Big Oak Flat). 



