494 FABACEAE 



about 7, oblanceolate, 15-25 mm. long; flowers spreading in anthesis, soon deflecting, pedicels 

 3-4 mm. long ; upper calyx-lip bilobed, lower bi- or tridentate ; petals dull white or pinkish, ban- 

 ner suborbicular, emarginate, keel nearly straight on upper edges, ciliate on the lower edges near 

 the claws; pods deflexed, glabrous, about 20 mm. long, ovules 5-8; seeds about 2 mm. long, 

 dull, unspotted. 



Sandy soil, Lower Transition Zone; Mariposa Creek, below Mariposa, Mariposa County, California, the 

 type locality. April-May. 



19. Lupinus citrinus Kell. Orange-flowered Annual Lupine. Fig. 2578. 



Lupinus citrinus Kell. Proc. Calif. Acad. 7 : 93. 1877. 



Short-hairy, 10-20 cm. tall, branched at the base. Leaflets 6-8, oblanceolate, 15-20 mm. long; 

 flowers spreading in anthesis but soon deflexing, pedicels 3 mm. long, spreading-pubescent ; upper 

 calyx-lip cleft, lower minutely tridentate ; petals bright orange or golden, banner orbicular, 

 emarginate, keel nearly straight on the upper edges, ciliate on the lower edges near claws ; pods 

 deflexed, glabrate, 12-15 mm. long, ovules 2-4, seeds rhomboidal, about 2 mm. long, black-spotted 

 on a pale ground. 



Foothills, Transition Zone; Fresno County, California. Type locality; near Fresno, California. June. 



20. Lupinus nanus Dougl. Douglas' Annual Lupine. Fig. 2579. 



Lupinus nanus Dougl. ex Benth. Trans. Hort. Soc. Lond. II. 1: 409. 1835. 

 Lupinus affinis Agardh, Syn. Gen. Lup. 20. 1835. 



Minutely spreading-pubescent, or appressed-pubescent and more or less villous, erect, simple 



or branched at the base, 2-6 dm. tall. Leaves long-petioled, usually appressed-hairy above, 



petioles 4-8 cm. long, leaflets 5-7, linear to spatulate, 15-30 mm. long; peduncles 4-8 cm. long, 



racemes 6-20 cm. long, verticils well separated; flowers 10-16 mm. long, bracts deciduous, pedicels 



5-8 mm. long ; upper calyx-lip cleft, lower bi- or tridentate ; petals rich blue, rarely pink or white, 



all broad, banner with white or yellow center changing to violet, suborbicular, keel ciliate on 



upper edges of acumen ; pods appressed-pubescent, 20-35 mm. long, ovules usually 4-8, rarely 



8-12. seeds 2-3 mm. long, variously colored and marked. 



Grassy hills and fields, common, Upper Sonoran and Lower Transition Zones; Mendocino County to Santa 

 Barbara, in the Coast Ranges, and in the Sierra Nevada foothills, Calaveras County to Tulare County, California. 

 Type locality: California. March-June. 



Lupinus nanus var. perlasius C. P. Smith, Bull. Torrey Club 50: 164. 1923. {Lupinus spectabilis Hoo- 

 ver, Leaflets West. Bot. 2: 131. 1938.) Densely long-villous with hairs 2-3 mm. long; flowers about 14 mm. 

 long; ovules 6-7, seeds 4 mm. long. Foothills of the Sierra Nevada, Tuolumne and Mariposa Counties, California. 



Lupinus nanus var. carnosulus (Greene) C. P. Smith, Bull. Torrey Club 50: 165. 1923. {Lupinus car- 

 nosulus Greene, Bull. Calif. Acad. II. 6: 144. 1886; Lupinus affinis var. carnosulus (Greene) Jepson, Fl. W. 

 Mid. Calif. 371. 1901.) Largest leaflets 25-40 mm. long, pods 30-50 mm. long, 7-9 mm. wide, seeds about 5 mm. 

 long, mottled and with a dark marginal line, but no contiguous pale spots embracing the micropyle. Canyon, 

 Upper Sonoran Zone; Bay Region, California, and grassy slopes, western Oregon. Type locality: Olema, Marin 

 County, California. 



Lupinus nanus var. Menkerae C. P. Smith, Bull. Torrey Club 50: 167. 1923. Leaflets 10-15 mm. long, 

 2-3 mm. wide; flowers 10-12 mm. long; petals pale lilac, drying blue; pods 20-25 mm. long, barely 4 mm. wide, 

 ovules 9-12, seeds pale flesh-colored, obscurely marked. Lower Sonoran Zone; Kern County to Coalinga, Fresno 

 County, California. Type locality: Bakersfield, Kern County, California. 



Lupinus nanus var. vallicola (Heller) C. P. Smith, Bull. Torrey Club 50: 168. 1923. {Lupinus per- 

 sistens Heller, Muhlenbergia 2: 62. 1905, not L. persistens Rose; Lupinus vallicola Heller, op. cit. 4: 40. 

 1908.) Flowers 6-10 mm. long, banner usually wider than long, its apex not much reflexed from upper margins 

 of wings, keel strongly curved; seeds pale, scarcely marked. Sierra Nevada foothills, Upper Sonoran and Tran- 

 sition Zones; Butte County to Kern County, probably casual at Wrights, Santa Clara County, California. Type 

 locality: Redding, Shasta County, California. 



Lupinus nanus var. apricus (Greene) C. P. Smith, Bull. Torrey Club 50: 170. 1923. {Lupinus apricus 

 Greene, Leaflets Bot. Obs. 2: 67. 1910; Lupinus vallicola var. apricus (Greene) C. P. Smith, Muhlenbergia 

 6: 136. 1911; Lupinus hirsutulus Greene, Leaflets Bot. Obs. 2: 152. 1911.) Like the last, but banner not 

 wider than long, its apex well reflexed from upper edges of wings, keel arcuate or scarcely curved; seeds dark, 

 well marked. Upper Sonoran and Transition Zones; Vancouver Island, British Columbia, and southwestern 

 Oregon to Monterey County, California. Type locality: Stanford University, California. 



21. Lupinus pachylobus Greene. Mount Diablo Annual Lupine. Fig. 2580. 



Lupinus pachylobus Greene, Pittonia 1 : 65. 1887. 



Lupinus micranthus var. pachylobus (Greene) Jepson, Fl. W. Mid. Calif. 318. 1901. 



Conspicuously villous, stout, 1-3 dm. tall, usually branched at the base. Petioles 6-8 cm. long, 

 leaflets 6-8, oblanceolate, 15-25 mm. long, hairy on both sides; peduncles 6-8 cm. long, racemes 

 shorter, verticils 2-4; flowers few, 6-8 mm. long, sometimes scattered, pedicels 1-2 mm. long; 

 upper calyx-lip cleft, lower broad, tridentate ; petals blue, banner suborbicular, 6-8 mm. wide, with 

 a white center, keel non-ciliate or nearly so ; pods especially large, 25-30 mm. long, 6-9 mm. wide, 

 thick and succulent when green, ovules 4-6, seeds 4-5 mm. long, brown, marked with darker shades. 



Grassy hills, Upper Sonoran Zone; Shasta County to Mariposa and Santa Clara Counties, California, per- 

 haps also in San Diego County. Type locality: Briones Hills, east of San Pablo Creek, Contra Costa County, 

 California. March-April. 



22. Lupinus bicolor Lindl. Lindley's Annual Lupine. Fig. 2581. 



Lupinus bicolor Lindl. Bot. Reg. 13: pi. 1109. 1827. 



Lupinus micranthus var. bicolor S. Wats. Proc. Amer. Acad. 8: 536. 1873. 



Lupinus sabulosus Heller, Muhlenbergia 7: 9. 1911. 



Lupinus strigulosus Gandoger, Bull. Soc. Bot. Fr. 60: 461. 1913. 



Usually villous, \-A dm. tall, erect and simple or diffusely branched at the base. Leaves 

 pubescent on both sides, petioles 3-7 cm. long, leaflets 5-7, oblanceolate to cuneate, 10-20 mm. 



