274 LEGUMINOSAE 



Kefs. — LUPINUS MICRANTHUS Dougl. ; Lindl. Bot. Ri-g. t. 1251 (1829), type loc. southern 

 tributaries of the Columbia . . . and in the interior of California" (not Cal. of today), Douglas; 

 Jepson, Fl. W. Mid. Cal. 317 (1901), ed. 2, 219 (1911), Man. 523 (1925). L. polycarpus Greene, 

 Pitt. 1:171 (1S88), type loc. vicinity of Sun Francisco; Jepson, Fl. W. Mid. Cal. 318 (1901), ed. 

 2, 219 (1911), L. polycarpus var. grandiflorus Dav. & Mox. Fl. S. Gal. 187 (1923), type loc. 

 Riverside near Burbank Road, Payne. Var. congdonii C. P. Sm. Bull. Torr. Club 51:99 (192'1), 

 typo loc. Smith Ranch, Big Oak Flat, Yosemite road, Congdon. 



36. L. succulentus Dougl. Arroyo Lupine. Stem stout, hollow and succu- 

 lent, branching mostly from the middle, 14 to 20 inches (or to S^/^ feet) high; 

 herbage lush, glabrate or sparsely puberulent, the leaflets glabrous above; leaflets 

 7 to 9, oblong-oblanceolate or broadly cuneate-obovate, obtuse or retuse, 1 to 2 

 inches long; petioles ll^ to 4 inches long; racemes short-peduncled, 5 to 7 inches 

 long, the whorls subverticillate, discrete or approximate; flowers spreading in 

 anthesis, ascending later, 6 to 8V2 lines long; bracts early deciduous; pedicels 2 to 

 3 lines long, spreading-pubescent ; upper calyx-lip deeply cleft, the lower lance- 

 olate lip entire or 3-toothed; petals deep blue to almost white; banner with yellow 

 center turning violet; wings slightly ciliate at the base above, keel glabrous but 

 ciliate near claws both above and below; pods long, appressed-pubescent, divari- 

 cate, 11/4 to 2 inches long, 2 to 3^/^ lines wide; ovules 8 to 10. 



Adobe soil, especially banks of winter water courses, or depressions or land- 

 slips on hill slopes, or in sandy fields, 200 to 1500 feet : North Coast Ranges from 

 Mendocino Co. south to coastal Southern California; Great Valley. Feb.-May. 



Locs. — Coast Ranges: Ukiah, Purdy ; Lagoon Pass, Solano Co., Jepson 8222; Martinez, 

 Brewer 996; North Berkeley, Jepson 66t; Portola, San Mateo Co., Elmer 5021; Livermore, Heller 

 7320; Loma Prieta, Davy 631; San Luis Valley, Summers. S. Cal.: Santa Barbara, Elmer 4142; 

 Ojai Valley, Hubby; Los Angeles, Braunton 880; San Bernardino, Parish; Hemet, C. F. BaTcer 

 4189; La Jolla, San Diego Co., Jepson 11,892. Great Valley: Anderson (Bull. Torr. Club 49: 

 202) ; College City, Alice King; Chico (Bull. Torr. Club 49:201) ; Yuba City, Jepson; Huron 

 (Bull. Torr. Club 49:201). 



Refs. — LupiNus SUCCULENTUS Dougl.; C. Koch, Wochenschr. Gaertn. Pflanzenkunde 4:277 

 (1861), type cult., undoubtedly from Cal.; Jepson, Man. 521, fig. 518 (1925). L. aflinis B. & W. 

 Bot. Cal. 1:122 (1876) ; Jepson, FL W. Mid. CaL 317 (1901), ed. 2, 218 (1911) ; not L. affinis 

 Agardh (1835). L. succulentus var. layneae C. P. Sm. Bull. Torr. Club 49:203 (1922), type loc. 

 Farallon City, San Mateo Co., K. Brandegee ; low form; racemes short (not exceeding foliage). 



37. L. concinnus Agardh. Bajada Lupine. Stems several from the base, 

 stoutish, decumbent or ascending, 4 to 9 inches high; herbage densely villous or 

 sometimes white-villous, tawny or rusty in age; leaves many, crowded; leaflets 5 to 

 8, oblanceolate, 4 to 10 lines long, obtuse or acute, the slender petioles ^/^ to 2 

 inches long; racemes short, rather dense, often nearly sessile, 1 to 2^ inches long, 

 shorter than or little surpassing the leaves; bracts linear-setaceous, persistent; 

 pedicels % to % line long; flowers 3I/2 to 4% lines long; upper calyx-lip 2-parted, 

 the lower rather deeply 3-toothed; petals lilac (edged with reddish purple) or 

 violet; banner with a yellow spot in center; keel nearly straight, the acumen thick, 

 blunt; pods 4-seeded, villous; seeds angled or quadrangular. 



Sandy valleys or washes, 50 to 5400 feet : Monterey Co. to San Diego Co., east 

 to Inyo Co. and the Mohave and Colorado deserts. Far east to southern Utah and 

 New Mexico, south to Lower California. Apr.-June. 



Locs. — Los Burros Mine, Santa Lucia Mts. (Bull. Torr. Club 48:224); Estrella, Jared; 

 Bakersfield, Davy 1800 ; Randsburg, Heller 7679 ; Panamint Range, Hall 4" Chandler 6955 ; Barn- 

 well, e. Mohave Desert, K. Brandegee; Ord Mt., s. of Daggett, Jepson 15,508 ; Cajon Pass, Jepson 

 6113, Peirson 371; Lake Arrowhead, San Bernardino Mts., Braunton 1064; Chalk Hill, Mt. San 

 Jacinto, Jepson 1297 ; Devils Canon, near Coachella, Clary 8 ; San Felipe Creek, e. San Diego Co., 

 Jepson 8783; Vallecito, e. San Diego Co., Jepson 8542. 



Note on the varieties. — The named varieties, in our judgment, represent a continuous series 

 rather than sharply differentiated groups. Var. optatus C. P. Sm. has slightly larger flowera, 

 var. ORCUTTii C. P. Sm. slightly smaller ones than the prevailing or typical form. Var. PALLrous 

 C. P. Sm. and var. desertorum C. P. Sm. rest upon uncertain leaf and pubescence characters. Var. 

 AGAEDHiANUS C. P. Sm., with more open habit and less dense pubescence, is usually recognizable : 



