502 FABACEAE 



glabrous, with dark center, wings glabrous, keel much curved, ciliate on upper edges of acumen ; 

 pods and seeds not seen. 



Dry hills, Arid Transition Zone; near Waldo and Kerbyville, Josephine County, Oregon. Type locality: 

 eastern side of the Coast Range near Waldo, Oregon. April-June. 



Lupinus mucronulatus var. umatillensis C. P. Smith, Sp. Lup. 108. 1939. Bracts persistent, often longer 

 than the pedicels; leaflets narrower, widest near the middle, leaves few, largely crowded near the base of the 

 stem. Table Rock, Umatilla County and National Forest, Oregon. 



43. Lupinus onustus S. Wats. Plumas Lupine. Fig. 2602. 



Lupinus onustus S. Wats. Proc. Amer. Acad. 11: 127. 1876. 

 Lupinus pinetorum M. E. Jones, Contr. West. Bot. No. 8: 25. 1898. 

 Lupinus violaceus Heller, Muhlenbergia 2: 65. 1905. 



Sparsely appressed-silky, slender, decumbent, 15-20 cm. tall. Leaves few, long-petioled, 

 appressed-silky below, glabrous above, petioles 5-10 cm. long, leaflets 5-8, oblanceolate, acute 

 or obtuse, 25-40 mm. long; peduncles 5-8 cm. long, racemes 5-15 cm. long, few-flowered; 

 flowers 8—11 mm. long, scattered, pedicels about 3 mm. long, appressed-pubescent, bracts short, 

 deciduous ; calyx scarcely gibbous, upper lip notched, lower entire ; petals deep blue, banner and 

 wings glabrous, keel nearly straight on upper ciliated edges ; pods 35-40 mm. by 12 mm., sub- 

 silky, ovules 5 or 6, seeds brown, 6-7 mm. long by 6 mm. broad. 



Open pine woods, Transition Zone; Plumas, Lassen, and Siskiyou Counties, California. Type locality: 

 Indian Valley, Plumas County, California. April-June. 



Lupinus alilatissimus C. P. Smith, Sp. Lup. 148. 1940. Plant 6-9 dm. tall, stems slender, widely 

 branched, nerved, minutely spreading-pubescent; leaves large, green, the upper smaller and long-petioled, about 

 three times their leaflets, the middle leaves largest, their petioles hardly twice their leaflets, leaflets glabrate both 

 sides, stipules inconspicuous, hardly 3 mm. long, the free part deciduous, leaflets 7-9, largest 70-80 mm. long, 

 20-25 mm. wide, radiating, flat, largely obtuse, widely oblanceolate or widest at the middle; racemes 20-30 cm. 

 long, verticils 8-12, well separated; bracts caducous, pedicels ascending, spreading-pubescent, 2-6 mm. long; 

 flowers spreading or ascending, 10-12 mm. long, calyx subsymmetrical, minutely spreading-pubescent, upper lip 

 deeply bidentate, almost cleft, lower entire or minutely bidentate; petals bluish or brownish, banner glabrous, 

 suborbicular, subreflexed, median yellow spot changing to purple, wings hardly covering lower bend of the arcuate 

 non-ciliate keel; pods 35-40 mm. long, dull tawny-yellow, ovules 4-5. Type locality: hills north of Redding, 

 Shasta County, California. 



Lupinus Thompsonianus C. P. Smith, Sp. Lup. 149. 1940. Erect, 3-4 dm. tall, stems very slender, 

 unbranched, glabrate; leaves green, glabrate both sides, lowest primary very small, mostly deciduous at flowering 

 time, stipules 3-4 mm. long, mostly free, petioles slender, 30-60 mm. long, leaflets^ 5-8, flat, radiating, acute, 

 widest at the middle, largest 30 mm. long, 10 mm. wide; racemes 8-15 mm. long, verticils 8-12, bracts deciduous, 

 pedicels appressed-pubescent, 3-5 mm. long; flowers 8-10 mm. long, calyx appressed-pubescent, subgibbous at 

 base, upper lip bidentate, lower entire; petals pale, bluish or purplish, banner suborbicular, little reflexed, wings 

 5-6 mm. wide, covering the non-ciliate, arcuate keel; pods not seen. Type locality: rocky ground, Douglas Park, 

 Del Norte County, California. 



44. Lupinus Breweri A. Gray. Brewer's Lupine. Fig. 2603. 



Lupinus Breweri A. Gray, Proc. Amer. Acad. 7 : 334. 1867. 



Appressed-silvery-silky, shrubby, low, prostrate or decumbent, branched and matted, growth 

 of season 2-15 cm. long. Leaves many, crowded basally or scattered along the stem, petioles 1-5 

 cm. long, leaflets 7-10, spatulate to oblanceolate, 5-20 mm. long; peduncles 1-3 cm. long, 

 racemes usually densely flowered, 3-5 cm. long; flowers 7-10 mm. long, sometimes scattered, 

 pedicels 1-3 mm. long; bracts deciduous; upper calyx-lip cleft, lower entire or tridentate; petals 

 violet, banner obovate to suborbicular, center yellowish or white, back glabrous or pubescent near 

 middle, keel straight on upper edges where non-ciliate or with a few cilia; pods about 12 mm. 

 long, silky, ovules 3 or 4, seeds 3-4 mm. long, flesh-colored, marked with olive-brown. 



Rocky mountain tops or gravelly levels, Upper Arid Transition to Canadian Zones; Siskiyou Mountains, 

 southern Oregon, to the San Bernardino Mountains, southern California. Type locality: "Prostrate, trailing on 

 the ground, or on rocks on the Yosemite trail, alt. 6,000 feet." June-Sept. 



Lupinus Breweri var. parvulus C. P. Smith in Jepson, Man. Fl. PI. Calif. 526. 1925. Stems as above; 

 racemes usually subcapitate, scarcely exceeding the foliage; flowers 5-7 mm. long. Canadian Zone; Nevada 

 County, California, and adjacent Nevada, to Ventura County, California. Type locality: Gold Lake, Sierra 

 County, California. 



Lupinus Breweri var. bryoides C. P. Smith in Jepson, Man. Fl. PI. Calif. 526. 1925. Season's growth 

 barely 1 cm. long; petioles about 1 cm. long, leaflets about 5 mm. long; flowers 4—6 mm. long; whole plant sug- 

 gesting a congested mass of coarse moss. Boreal Zones; Tulare and Ventura Counties, California. Type 

 locality: Olancha Mountain, Tulare County, California. 



Lupinus Breweri var. grandiflorus C. P. Smith in Jepson, Man. Fl. PI. Calif. 526. 1925. Stems about 

 1 cm. long, leaves crowded at the base, their petioles 4-6 cm. long; racemes exceeding the foliage; flowers scat- 

 tered, 11-12 mm. long, the banner more reflexed than usual for this species. Type locality: Mono Craters, Mono 

 County, California. 



Lupinus Breweri var. Clokeyanus C. P. Smith, Sp. Lup. 150. 1940. Peduncles 3-8 cm. long, racemes 

 3-10 cm. long, verticils 4-8, the lowest remote; legumes ascending or suberect, 12-14 mm. long, 7-8 mm. wide, 

 with 2 or 3 ovules, but usually just one seed. A conspicuous variation of the usual L. Breweri. Type locality: 

 Bear Lake, San Bernardino Mountains and County, California. 



Lupinus crassulus Greene, Muhlenbergia 8: 118. 1912. Glabrate to loosely villous, low, suffrutescent, 

 much branched, prostrate or decumbent, growth of season 10-15 cm. long, succulent. Leaves many, loosely 

 villous, scattered along the stem, petioles 1-5 cm. long, leaflets 5-7, spatulate to suboval, 10-20 mm. long; 

 peduncles 1-3 cm. long, racemes 3-4 cm. long, rather densely flowered; flowers mostly scattered, 8-10 mm. long, 

 pedicels about 1 mm. long, spreading-villous. bracts subpersistent, subulate, much exceeding the young buds in 

 the immature raceme; petals largely blue, the banner bright yellow in center, keel ciliate on the upper edges; 

 pods and seeds not seen. Boreal Zones; known only from the type collection, taken near Sonora Peak, at 10,500 

 feet, Stanislaus County, California. 



45. Lupinus Peirsonii H. L. Mason. Peirson's Lupine. Fig. 2604. 



Lupinus Peirsonii H. L. Mason, Madrono 1 : 187. 1928. 



Appressed silvery-silky, 3-6 dm. tall, stems ascending. Leaves subbasal, long-petioled, densely 



