298 



LEGUMINOSAE 



Valleys or hillsides, 50 to 6000 feet : ]\It. Finos; North Coast Rang^es from Lake 

 Co. to Siskiyou Co. ; Sierra Nevada from Tidare Co. to Modoc Co. East to Nevada, 

 north to Idaho and British Columbia. June- Aug. 



Locs. — Mt. Pinos: Seymour Creek, Peirson 3217. North Coast Ranges: Gravelly Valley, n. 

 Lake Co., Jepson ]. 3,696; Ft. Brapp, TV. C. Maihetos 68; Sherwood to Laytonville, Mendocino Co., 

 Jepson 2198; Buck :\It., Humboldt Co., Tracy 2827; Soldier Ridge, se. Trinity Co., Jepson 13,695; 

 Log Lake, Shackelford Creek, w. Siskiyou Co., Butler 386. Sierra Nevada: Mineral King, Tulare 

 Co., T. Brandegee ; Coldstream, Placer Co., Sonne; Dixie Mts., Lassen Co., Baker 4' Nutting; 

 Joseph Creek, Warner Mts., L. S. Smith 880. 



Refs. — Trifoui-m cyatiiiferim Lindl. Bot. Reg. sub t. 1070 (1827), tvpe loc. Columbia 

 River region, Douglas; Hook. Fl. Bor. Am. 1:133, t. 50 (1830) ; McDer. N. Am. Sp. Trifolium 

 115, pi. 42 (1910) ; Jepson, Fl. W. Mid. Cal. ed. 2, 226 (1911), Man. 540 (1925). 



12. T. barbigerum Torr. Colony Clover. (Fig. 196.) Stems several from 

 the base, procumbent, spreading in a circle, 3 to 8 inches long; leaflets rhombic or 



deltoid to ovate-oblong, very obtuse to trun- 

 catish or retuse, setate-serrulate, 3 to 4 lines 

 long; stipules ovate-lanceolate, scarious, the 

 upper portion green; peduncles erect, slen- 

 der, wiry, villous to glabrous; heads 3 to 6 

 lines high; involucre large (5 to 7 lines wide), 

 shallowly bowl-shaped when young and al- 

 most enclosing the flowers, becoming nearly 

 plane in age ; calyx surpassing the corolla, its 

 teeth plumose, setaceous, 1^4 to 2 times as 

 long as tube, the lower tooth once or twice 

 forked; corolla rose-red, the banner inflated; 

 pods 2-seeded. 



Low hills, in colonies, 10 to 2500 feet : near 

 the coast from Del Norte Co. to Monterey Co. ; 

 Sierra Nevada foothills from Sacramento Co. 

 to Calaveras Co. Apr.-June. 



Locs. — Coastal region: Gasquets, Del Norte Co., 

 Howell 1421; Hupa Mt., Davy 5684; Bald Mt., Hum- 

 boldt Co., Tracy 6346; Eureka, Blasdale ; Sherwood 

 Valley, Mendocino Co., Davy 5137; Mendocino City, 

 Bolander 4755 ; Fort Ross, Eeller 6609 ; Pt. Reyes, 

 Jepson 8323; Berkeley, Greene; Oakland HUls, Jep- 

 son 6866; San Francisco, Jepson 13,684; Lake San 

 Andreas, San Mateo Co., Elmer 4859 ; Stanford, C. F. 

 BaJccr 784 ; Alma, Santa Clara Co., Heller 7842 ; Santa 

 Cruz, Anderson; Pacific Grove, Heller 6723. Sierra 

 Nevada foothills: Folsom, ne. Sacramento Co., Jep- 

 .Hon 15,742 ; Harmon Peak, Calaveras Co., Davy 1431. 

 Var. lilacinum Jepson comb. n. Involucre 6 to 9 lines wide, deeply 8 to 10-Iobed, % to % 

 the length of the head; calyx conspicuously membranous, 2^/2 to 4 lines long, the teeth equaling 

 the tube; corolla purple, white-tipped, 5 to 6 lines long. — Wet spots in valleys, mostly near or 

 on the borders of the limits of distribution of the species in the Coast Ranges : Santa Margarita, 

 San Luis Obispo Co., Jepson 11,967a; Dozier sta., Solano Co., Jepson 12,394; Eureka, Tracy 2964. 

 Refs. — Trifolium barbigerum Torr. Pac. R. R«p. 4:79 (1857), type loc. San Francisco, 

 Bigelow; McDer. N. Am. Sp. Trifolium 120, pi. 45 (1910) ; Jepson, Fl. W. Mid. Cal. 310 (1901), 

 ed. 2, 225 (1911), Man. 540 (1925). Var. lilacinum Jepson. T. lilacinum Greene, Proc. Acad. 

 Phila. 47:547 (1896), type loc. South San Francisco, Greene. 



13. T. grajd Loja. Sonoma Clover. (Fig. 197.) Stems erect or ascending, 

 branching, 4 to 12 inches high; herbage villous-pubescent throughout; leaflets 

 obovate, 4 to 7 lines long; stipules large, ovate, shortly laciniate, green on upper 

 part, membranous below; heads large (9 to 13 lines wide) ; involucre saucer-shaped, 

 villous-pubescent on both surfaces, shallowly 10 to 16-lobed, the lobes sometimes 

 flabellate, incisely and equally aristate-toothed; flowers large, 5 to 8 lines long; 



Fig. 196. Trifolium barbigerum Torr. 

 fl, habit, X % ; b, involucre spread open, 

 X ly^ ; c, fl., X 2; d, calyx spread open, 

 X 2. 



