280 LEGUMINOSAE 



the petals arc blue and tlio banner has a wliite center. — Mt. Pinos; but l)lackening leaflets some- 

 times occur in a quite different strain of the Mendocino region. In the var. lacteus C. P. Sm., the 

 petals are nearlv Avhite (Rowen, Tehachapi Mts., Jcpson 6738; Tejon Pass, Parish 9250; Ojai 

 Valley, Huhb y ;' ■Santa Ana, Alice King; Coyote Canon, Santa Rosa Mts.). The specimens cited 

 below are regarded as typical of the var. densiflorus. 



Locs. — Coast Ranges: Zem-zem, ne. Napa Co., Jcpson 9049; Putah Creek near Winters, E. 

 Ferguson 338; Weldon Canon, Vaca Mts., Jepson 171; Pt. San Quentin, Marin Co., Jcpson 9063; 

 Liverraore, Jcpson 231; Mt. Hamilton, Jcpson 8241 ; San Luis Obispo, Breicer 483 ; Zapato Canon, 

 sw. Fresno Co., Jcpson 15,384. Sierra Nevada foothills: Michigan Bar, ne. Sacramento Co., 

 Jepson 15,260; Chinese Camp, Tuolumne Co., Jcpson 6315; Cathay Valley, Mariposa Co., Jepson 

 12,768. S. Cal.: Banning, Jcpson 6086. 



Var. ruber C. P. Sm. Flowers ascending in anthesis ; petals dull red to pink; banner 1 to 2 

 lines wide. — Dry valleys and hillslopes: Inyo, Kern and San Luis Obispo Cos. to San Diego Co. 

 South to Lower California. 



Locs. — Argus Mts., Purpus 5437; Tehachapi, K. Brandegee; San Emigdio Canon, Davy 

 2059; Huerhuero, San Luis Obispo Co., Barber; Estrella, Jarccl; Banner, San Diego Co., T. 

 Brandegee. 



Var. horizontalis Jepson comb. n. Flowers ascending or suberect (or sometimes spreading) 

 in anthesis; petals lavender, changing to white; banner 2i/2 to 3 lines wide. — Sandy flats, upper 

 San Joaquin Valley and Mohave Desert: Randsburg, K. Brandegee; Barstow, Jepson 5895. 



Refs. — LupiNUS MiCROCARPUS Sims, Bot. Mag. t. 2413 (1823), type loc. Chile. L. suhvexus 

 C. P. Sm. Bull. Torr. Club 44:405 (1917), type loc. Madison, Yolo Co., Heller ^- Brown 5415; 

 Jepson, Man. 520 (1925). L. suhvexus var. nigrcscens C. P. Sm. I.e. 45:13 (1918), type loc. 

 Griffins, Mt. Pinos, Ventura Co., Elmer 4006 (leaves blackening in drying, ex char.). L. suhvexus 

 var. iransmonianus C. P. Sm. I.e. 15, type loc. Antelope, "Wasco Co., Oregon, T. Howell (banner 

 acute at apex, ex char.) ; Jepson, Man. 520 (1925). L. suhvexus var. insularis C. P. Sm. I.e. 17, 

 type loc. Santa Cruz IsL, T. Brandegee. L. suhvexus var. pJioeniceus C. P. Sm. I.e., type loc. Mt. 

 Hamilton road, Santa Clara Co., Heller 8652; Jepson, Man. I.e. L. suhvexus var. alhilanatus 

 C. P. Sm. I.e. 19, type loc. Paso Robles, San Luis Obispo Co., K. Brandegee (foliage with conspicu- 

 ous short white pubescence; banner narrow, ex char.); Jepson, Man. 520 (1925). Var. densi- 

 florus Jepson. L. densiflorus Benth. Trans. Hort. Soc. scr. 2, 1:410 (1835), type cult., the seeds 

 from Cal., Douglas; Jepson, Fl. W. Mid. Cal. 318 (1901), ed. 2, 220 (1911), Man. 520 (1925). 

 L. densiflorus var. stenopetalus C. P. Sm. Bull. Torr. Club, 45:174 (1918), type loc. Los Gates, 

 Santa Clara Co., Heller 7385. L. densiflorus var. menziesii C. P. Sm. I.e. 176; Jepson, Man. 521 

 (1925). L. menziesii Agardh, Syn. Gen. Lup. 2 (1835), type from Cal., Douglas; Jepson, Man. 

 I.e. L. menziesii var. aurea Kell. Proc. Cal. Acad. 5:16 (1873), type loc. "Deer Valley near An- 

 tioch", Kellogg 4" Brannan. L. densiflorus var. perfistulosus G. P. Sm. I.e. 175, type loc. not given, 

 Kellogg 4- Harford 187. L. densiflorus var. tracyi C. P. Sm. I.e. 179, type loc. "Willow Creek, 

 Trinity River Valley, Tracy 3280. L. densiflorus var. latilahrus C. P. Sm. I.e. 178, type loc. near 

 lone, Amador Co., E. Braunton 1081. L. densiflorus var. glarcosus C. P. Sm. I.e. 180; Jepson, 

 Man. I.e. L. glarcosus Elmer, Bot. Gaz. 39:53 (1905), type loc. Griffins, Ventura Co., Elmer 

 3588. L. densiflorus var. lacteus C. P. Sm. I.e. 181; Jepson, Man. I.e. L. lacteus Kell., Proc. Cal. 

 Acad. 5 :37 (1873), type loc. Oak Creek, Kern Co., 14 mi. from Te.ion Pass, S. Brannan. L. areni- 

 cola Hel. Muhl. 2:75 (1905), type loe. near Caliente, Kern Co., Heller 7609. L. densiflorus var. 

 sublanatus C. P. Sm. Bull. Torr. Club 45:183 (1918), type loc. Water Caiion, Tehachapi Mts., 

 Ahrams 4' McGregor 485. L. densiflorus var. macgregori C. P. Sm. I.e. 184, type loc. Rock Creek, 

 San Gabriel Mts., Abrams cf- McGregor 551. L. densiflorus var. altus C. P. Sm. I.e. 185, type loc. 

 Manzana, Antelope Valley, Los Angeles Co., Davy 2505. L. densiflorus var. vastiticola C. P. Sm. 

 I.e. 186, type loc. Mohave Desert, Pringle. L. densiflorus var. versahilis C. P. Sm. I.e. 187, type loc. 

 Fresno, Heller 8174. L. densiflorus var. latidens C. P. Sm. I.e. 188, type loc. near San Bernardino, 

 Parish 4165. L. densiflorus var. dudleyi C. P. Sm. I.e. 189, type loc. w. of San Mateo, Dudley. 

 L. densiflorus var. persccundus C. P. Sm. I.e. 190, type loc. Duncan Mills, Sonoma Co., Jones 3329. 

 L. densiflorus Benth.; Agardh, Syn. Gen. Lup. 3 (1835), type from Cal., Douglas. L. densiflorus 

 var. paluslris C. P. Sm. I.e. 191. L. palustris KeU. Proc. Cal. Acad. 5:16 (1873), type loc. San 

 Joaquin River, Kellogg 4' Bloomer. L. microcarpus Jepson, Fl. W. Mid. Cal. 319 (1901) in 

 part, ed. 2, 220 (1911) in part. L. densiflorus var. stanfordianus C. P. Sm. Bull. Torr. Club 45 : 194 

 (1918), type loc. Stanford, Santa Clara Co., C. P. Smith 791. L. densiflorus var. crinitus Eastw. ; 

 C. P. Sm. I.e. 195, type loc. Bodega Pt., Sonoma Co., Chandler 686 ; Jepson, Man. I.e. L. densi- 

 florus var. curvicarinus C. P. Sm. I.e. 196, type loc. Woodland, BlanTcinship. L. densiflorus var. 

 austrocollium C. P. Sm. I.e. 200, type loc. near St. Mary's Hospital, San Diego, Ahrams 3465; 

 Jepson, Man. I.e. L. densiflorus var. trichocalyx C. P. Sm. I.e. 198, type from Cal., Douglas (ex 

 herb. Lindl.). Var. ruber C. P. Sm., Bull. Torr. Club 45:10, fig. 4 (1918) ; Jepson, Man. 520 

 (1925). L. ruber Hel. Muhl. 2:73 (1905), type loc. Tehachapi, Heller 7827. Var. horizontalis 

 Jepson. L. horizontalis Hel. Muhl. 2:74 (1905), type loc. Sunset, Kern Co., Heller 7725; Jepson, 

 Man. 520 (1925). L. horizontalis \ar. platypetalus C. P. Sm. Bull. Torr. Club 45:12, fig. 6 (1918), 

 type loc. e. base Fremont Peak, Mohave Desert, Hall 4' Chandler 6860 ; Jepson, Man. I.e. 



