PEA FAMILY 487 



2. Lupinus microcarpus var. ruber (Heller) C. P. Smith. Red-flowered 



Platycarpos. Fig. 2561. 



Lupinus ruber Heller, Muhlenbergia 2 : 73. 1905. 



Villous, 1-5 dm. tall, often much branched, the branches ascending to erect, floriferous. 

 Leaves long-petioled, glabrous above, petioles 4-8 cm. long, leaflets 5-8, oblanceolate to spatulate, 

 1-2 cm. long ; peduncles 2-7 cm. long, racemes 3-6 cm., of 2-5 verticils ; flowers 8-10 mm. long, 

 erect or ascending, bracts persistent, pedicels barely 1 mm. long ; upper calyx-lip hardly 2 mm. 

 long, cleft with rounded lobes or slender teeth, lower lip 8 mm. long, bidentate, the slender teeth 

 often divergent; petals dull red to pink, banner almost plane, lance-ovate, angled at apex, 2-4 

 mm wide, wings narrow, scarcely ciliate, keel straight, ciliate above near the claws ; pods ovate, 

 12-17 mm. long, more or less villous, ovules 2, seeds pale, about 3 mm. long, rugose. 



Dry soils, Lower Sonoran Zone; San Benito and Kern Counties, California, to Lower California. Type 

 locality: Tehachapi, Kern County, California. May-July. 



Luninus microcarpus var. scopulorum C. P. Smith, Bull. Torrey Club 51 : 100. 1924. (Lupinus densi- 

 florus var. scopulorum C. P. Smith, Bull. Torrey Club 45: 201. 1918.) Long-villous; verticils approximate; 

 flowers suberect, about 15 mm. long, all petals light yellow, banner about 7 mm. wide, acute at apex; seeds about 

 5 mm long, dull, dark brown. Clay soils, seashore cliffs, Arid Transition Zone; Vancouver Island and islands 

 of Puget Sound. Type locality: Beacon Hill Park, Victoria, British Columbia. Vancouver Platycarpos. 



3. Lupinus subvexus C. P. Smith. Intermediate Platycarpos. Fig. 2562. 



Lupinus subvexus C. P. Smith, Bull. Torrey Club 44: 405. 1917. 



Loosely villous, the hairs 2-4 mm. long, simple or branched, 2-4 dm. tall. Flowers spreading 

 in anthesis, soon becoming suberect, 14-16 mm. long, in 3-7 distinct verticils, bracts soon re- 

 flexing pedicels 2 mm. long; petals dark violet-purple, lilac, or rose-pink, banner rounded at 

 apex, wings usually non-ciliate, keel nearly straight, ciliate above near claws ; pods and ovules as 

 in the last, seeds 4-5 mm. long, rough, dark brown. 



Clay soils, Upper Sonoran Zone; Yolo County to Mount Hamilton, California. Type locality: Madison, Yolo 

 County, California. April-June. Intermediate between L. microcarpus Sims and L. densiflorus Benth., and 

 usually interpreted as the former. 



Lupinus subvexus var. fluviatilis C. P. Smith, Bull. Torrev Club 45: 14. 1918 Lower, 10-25 cm tall; 

 floral bracts tardily or not at all reflex-withering; seeds flesh-colored, obscurely mottled. Yakima and Kittitas 

 Counties, Washington. Yakima Platycarpos. 



Lupinus subvexus var. transmontanus C. P. Smith, Bull. Torrey Club 45: 15 1918. Bracts early reflex- 

 withering- banner angled at apex, 5-7 mm. wide. Eastern and southern Oregon to Siskiyou and Lassen Counties, 

 California. Type locality: Antelope, Wasco County, Oregon. Oregon Platycarpos. 



Lupinus subvexus var. phoeniceus C. P. Smith, Bull. Torrey Club 45: 17. 1918. Flowers smaller about 

 10 mm. long; banner angled at apex, 9-11 mm. long; foliage greenish. Mount Hamilton Range, California. 

 Mount Hamilton Platycarpos. 



Lupinus subvexus var. albilanatus C. P. Smith, Bull. Torrey Club 45: 19. 1918. Banner 12-14 mm. 

 long, but as narrow; foliage white woolly-villous. Upper Salinas Valley, Monterey and San Luis Obispo Counties, 

 California. Salinas Platycarpos. 



Additional varieties may be recognized by referring to the paper indicated by the above citations. 



4. Lupinus densiflorus Benth. Dense-flowered Platycarpos. Fig. 2563. 



Lupinus densiflorus Benth. Tran. Hort. Soc. Lond. II. 1: 410. 1835. 



Appressed- or subappressed-pubescent, 2-5 dm. tall, simple or branched well above the base, 

 often succulent and fistulous. Leaves long-petioled, glabrous above, leaflets 7-9, oblanceolate, 

 3-5 cm long; peduncles 5-20 cm. long, racemes sometimes longer, verticils 5-12, approximate 

 or well-separated ; flowers 14-18 mm. long, spreading during and after anthesis, but becoming 

 secund when the rachis deflexes, bracts reflexing, pedicels 1-2 mm. long ; upper calyx-hp short, 

 scarious, notched or cleft, lower lip much longer, green, bi- or tridentate, bent and subsaccate 

 near base ; petals lilac, rose, or nearly white, banner elliptic, rounded at apex, keel ciliate on 

 upper edges near claws, likewise often the wings ; pods ovate-oblong, ovules 2, seeds extremely 

 variable. 



Clays or gravels, fields, hillsides, and ravines; Sonoma and Napa Counties to Santa Clara County, California. 

 Type locality: California. April-June. 



Lupinus densiflorus var. Menziesii (Agardh) C. P. Smith, Bull. Torrey Club 45: 176. 1918 (Lupinus 

 Menziesii Agardh, Syn. Gen. Lup. 2. 1835; Lupinus Mensiesn aurea Ke 11. Proc Calif. Acad. 5 : 16. 18/J.J 

 Stout and. fistulous, pubescence sparse and appressed, petals yellow, often edged, with reddish purple. Sacramento 

 and Marin Counties to Santa Barbara County. Type locality: California. Menzies Platycarpos. 



Lupinus densiflorus var. glareosus (Elmer) C. P. Smith Bull. Torrey Club 45: 180. 1918 JLupimcs 

 glareosils Elmer, Bot. Gaz. 39: 53. 190S.) Leaflets succulent, blackening in drying; petals light blue banner 

 with a white center. Stream gravels, Mount Pinos, Ventura County, California. Type locality. Gnffen s Post- 

 office, Ventura County, California. Mount Pinos Platycarpos. 



Lupinus densiflorus var. lacteus (Kell.) C. P. Smith, Bull Torrey Club 45: 181. l 918 -...^*"^; 

 Kell. Proc. Calif. Acad. 5: 37. 1873; Lupinus arenicola Heller, Muhlenbergia 2: 75. 1905.) Pubescence 

 spreading or retrorsely spreading; lower calyx-lip nearly straight, scarcely bent or subsaccate near base; petals 

 nearly white; plants usually acaulescent and unbranched. Sandy soil, Kern County to San Diego County Cali- 

 fornia. Type locality: Oak Creek hillsides, 14 miles from Tejon Pass, Kern County, California. Acaulescent 

 Platycarpos. 



Lupinus densiflorus var. versabilis C. P. Smith, Bull. Torrey Club 45: 187 1918. Similar to the last 

 as to pubescence, but lower calyx-lip bent and subsaccate; petals often rose or purple; stems often branched San 

 Joaquin and Amador Counties to Kern County, California. Type locality: Fresno, California. Fresno Platy- 

 carpos. 



Lupinus densiflorus var. palustris (Kell.) C, P. Smith, Bull Torrey Club 45: 191 1918 ■ ^uPhn.s 

 densinorus A-ardh Svn Gen. Lup. 3. 1835; Lupinus palustris Kell. Proc. Calif. Acad. 5: 16. 18730 Long- 

 vinou^especfaly the bent and subsaccate lower calyx-lip; plants stout 20-60 cm. tall. Contra Costa County to 

 Monterey, California. Type locality: San Joaquin River, California. Agardh's Platycarpos. 



