PEA FAMILY 497 



early deciduous or subpersistent, pedicels 1-2 mm. long, spreading-pubescent ; upper calyx-lip 

 notched, lower bluntly tridentate ; petals purple or blue, banner suborbicular, keel nearly straight 

 on the ciliated upper edges; pods 15 mm. long, villous, ovules 3 or 4, seeds 3 mm. long, ob- 

 scurely mottled. 



High mountain sides, Hudsonian Zone; Tulare and Fresno Counties, California. Type locality: Farewell 

 Gap, Tulare County, California. July-Aug. 



30. Lupinus laxifldrus Dougl. Douglas' Spurred Lupine. Fig. 2589. 



Lupinus laxiflorus Dougl. ex Lindl. Bot. Reg. 14: pi. 1140. 1826. 

 Lupinus arbustus Dougl. ex Lindl. Bot. Reg. IS: pi. 1230. 1829. 

 Lupinus laxiflorus var. montanus Howell, Erythea 3: 33. 1895. 



Appressed-subsilky, erect or ascending, 3-8 dm. tall. Leaves cauline, lower long-petioled, 

 subsilky or glabrate above, petioles 3-15 cm. long, leaflets 7-9, oblanceolate, 3-4 cm. long; 

 peduncles 3-8 cm. long, racemes 8-18 cm. long, racemes 8-18 cm. long, compactly or loosely 

 flowered; flowers 11-14 mm. long, bracts early deciduous, pedicels 4-8 mm. long; calyx-cup dis- 

 tinctly spurred above, the spur about 1 mm. long, upper lip green, notched, broad and short, 

 largely or entirely exposed, lower lip narrow, entire or tridentate ; petals blue, rose, or pale yel- 

 low, banner long-clawed, more or less hairy near middle of dorsal surface, wings pubescent on 

 sides near upper distal angle (rarely glabrous), keel ciliate on upper edges of acumen or rarely 

 non-ciliate ; pods 20-25 mm. long, pubescent, ovules 4-6, seeds about 5 mm. long, reddish brown 

 or pinkish, obscurely marked. 



Hillsides, Arid Transition Zone; Washington, Oregon, and Idaho. Type locality: "in dry, open, gravelly 

 plains about the great rapids of the River Columbia." April-July. 



Lupinus laxiflorus var. calcaratus (Kell.) C. P. Smith, Bull. Torrey Club 51 : 304. 1924. (Lupinus cal- 

 caratus Kell. Proc. Calif. Acad. 2: 195. 1862; Lupinus multitinctus A. Nels. Bot. Gaz. 53: 221. 1912; Lupinus 

 variegatus Heller, Muhlenbergia 8: 89. 1912.) Calyx-spur 1-3 mm. long, often all of calyx except lower lip 

 colored like the petals; petals all pale yellow, or some white or yellow and some rose or violet, rarely all blue. 

 Open hillsides, Arid Transition Zone; Nevada and western Utah (Mount Ibapah) to southern Idaho and eastern 

 Oregon and northwestern California, east of the Sierra Nevada Divide. Type locality: not given, but probably 

 western Nevada. 



Lupinus laxiflorus var. silvicola (Heller) C. P. Smith in Jepson, Man. Fl. PI. Calif. 527. 1925. (Lupinus 

 silvicola Heller, Muhlenbergia 6: 81. 1910.) Calyx-spur evident, but scarcely 1 mm. long, flowers only 8-9 mm. 

 long, petals mostly blue, violet-tinged. Open forests, Upper Transition Zone; Mariposa County, California, to 

 Lane and Wheeler Counties, Oregon. Type locality: Summit, Placer County, California. 



Lupinus laxiflorus var. cognatus C. P. Smith in Jepson, Man. Fl. PI. Calif. 527. 1925. Flowers 10-13 

 mm. long; upper calyx-lip largely concealed by the reflexed sides of the broad, short-clawed banner. Mountain 

 sides, Upper Transition Zone; Baker and Grant Counties, Oregon, to Modoc County, California, also in the San 

 Gabriel Mountains of Los Angeles County, California. Type locality: Wallowa Mountains, northeastern Oregon. 



31. Lupinus inyoensis Heller. Inyo Spurred Lupine. Fig. 2590. 



Lupinus inyoensis Heller, Muhlenbergia 2: 211. 1906. 



Pubescent with short spreading hairs, stems slender, 5-6 dm. tall, with few or no long- 

 petioled lower leaves at flowering time, petioles 4-8 cm. long, leaflets about 8, oblanceolate, 

 densely subappressed-pubescent on both sides ; peduncles 3-4 cm. long, racemes 5-10 cm. long ; 

 flowers 12-14 mm. long, bracts early deciduous, pedicels about 4 mm. long, spreading-pubescent; 

 calyx short-spurred, upper lip bidentate, lower entire ; petals pale violet or blue, banner as wide 

 as long, usually glabrous, keel ciliate above ; pods and seeds not seen. 



Sandy soil, among low shrubs, Upper Sonoran Zone; Sierra foothills of Inyo County, California. Type 

 locality: McGee Meadows, west of Bishop, Inyo County, California. May-June. 



Lupinus inyoensis var. eriocalyx C. P. Smith, in Jepson, Man. Fl. PI. Calif. 527. 1925. Plants 10-30 cm. 

 tall; racemes 4-8 cm. long, compact, pedicels 1-2 mm. long, flowers 10-11 mm. long; calyx woolly-villous ; ban- 

 ner woolly-pubescent on the back. Dry soil, Canadian Zone; high Sierra Nevada, Madera County to Inyo 

 County, California. Type locality: dry summits east of Minarets, Madera County, California. 



Lupinus inyoensis var. demissus C. P. Smith, Bull. Torrey Club 51: 304. 1924. Plants 1-3 dm. tall; 

 racemes 3-4 cm. long, compact; pedicels 2 mm. long, flowers 8-10 mm. long; calyx merely gibbous, not woolly; 

 banner suborbicular, glabrous. Transition Zone; known only from the type. Type locality: talus slope, Wallowa 

 Mountains, Baker County, Oregon. 



32. Lupinus caudatus Kell. Kellogg's Spurred Lupine. Fig. 2591. 



Lupinus caudatus Kell. Proc. Calif. Acad. 2: 197. 1862. 

 Lupinus argentinus Rydb. Bull. Torrey Club 30: 257. 1903. 



Appressed-silky or -satiny, subdecumbent to erect, 2-5 dm. tall. Lower leaves long-petioled, 

 silky on both sides, often densely silvery, petioles 3-8 cm. long, leaflets 5-7, oblanceolate, 2-5 cm. 

 long; peduncles 2-5 cm. long, racemes 5-15 cm. long; flowers 10-14 mm. long, scattered or sub- 

 verticillate, pedicels 3-4 mm. long, appressed-pubescent ; calyx-spur about 1 mm. long, upper lip 

 bidentate, lower entire; petals violet-blue or rarely white, banner silky on the back, wings gla- 

 brous or with a few stray cilia on the sides near the claw, keel ciliate on the upper edges ; pods 

 25-30 mm. long, silky ; ovules 5 or 6, seeds about 4 mm. long, reddish brown to flesh-pink. 



Exposed hillsides, Upper Sonoran Zone; eastern Oregon and southern Idaho to Utah, Nevada, and adjacent 

 California. Type locality: not given, but probably western Nevada. May-Sept. 



Lupinus caudatus var. subtenellus C. P. Smith, Bull. Torrey Club 51: 304. 1924. Leaflets linear, short- 

 hairy, decidedly greenish; racemes loosely flowered; flowers 8-10 mm. long, pedicels more slender, 3-5 mm. long. 

 Transition Zone; Deschutes and Lake Counties, Oregon. Type locality: Paulina Lake, Deschutes County, Oregon. 



Lupinus caudatus var. rubricaulis (Greene) C. P. Smith. Contr. Dudley Herb. 1: 29. 1927. (Lupinus 

 rubricaulis Greene, PI. Baker. 3: 35. 1901.) Foliage distinctly greenish, leaflets oblanceolate; calyx-spur not 

 pronounced. Transition Zone; Colorado and eastern Oregon. Type locality: Crested Butte, Gunnison County, 

 Colorado. 



