296 LEGUMINOS.VE 



(1838), type loc. Willamette River, Ore, Nnttall. T. phaeocephalum Greene, Pitt. 3:216 (1897), 

 type loc. Sierra Nevada foothills (Butte Co., Jl. 21. Austin). T. varicgatum var. pauciflorum 

 f. phaeocephalum McDer. I.e. 78, pi. 27. T. gcminiflorum Greene, Pitt. 3:216, type loc. Lassen 

 Peak, R. M. Austin. Var. tkilobatum Jepson; McDer. I.e. 73, pi. 25; Jepson, Fl. W. Mid. Cal. 

 ed. 2, 225 (1911), Man. 539 (1925). T. trilobatum Jepson, Bull. Torr. Club 18:322 (1891), type 

 loc. Marysville Buttes, Jepson. T. calophyllum Greene, Pitt. 3:213 (1897), type loc. "Kern Co. 

 and southwards". Var. melananthum Greene, Fl. Fr. 29 (1891) ; McDer. I.e. 74; Jepson, Fl. 

 W. Mid. Cal. ed. 2, 225 (1911), Man. 540 (1925). T. melananthum H. & A. Bot. Beech. 331 (1840), 

 type from Cal. T. morleyanum Greene, Erythca 3:47 (1895), type loc. Morleys sta., Modoc Co., 

 BaTcer <f- Xutting. T. variegatum var. melananthum f. morleyanum McDer. I.e. 76, pi. 26. T. 

 varicgatum var. ?)iajor Loja. Nuov. Giom. Bot. Ital. 15:183 (1883), type from Cal. T. variegatum 

 var. mclanantJium f. major McDer. I.e.; Jepson, Fl. W. Mid. Cal. ed. 2, I.e. 



9. T. oliganthum Steud. Lanky Clover. Stems slender, sparsely leafy, 4 to 

 16 inches high, with long internodes and long peduncles; herbage light green, gla- 

 brous, or the stipules and involucres sparsely pubescent ; leaflets linear to cuneate- 

 oblong, serrate-setate to entire, 3 to 10 lines long; peduncles 1 to 3% inches long; 

 heads very small (21/2 to 3 lines high), 3 to 15-fiowered; involucre small, divisions 

 deeply laciniate and unequal ; flowers 3 to 3^2 lines long ; calyx 10-nerved, the teeth 

 broadly subulate, dark green; corolla lavender, white-tipped; keel purple; calyx- 

 teeth broadly subulate, dark green ; pods 2 or 3-seeded. 



Wooded caiions and brush-covered slopes, 25 to 3500 feet : Coast Ranges from 

 San Luis Obispo Co. to Lake and Humboldt Cos. ; Sierra Nevada from Calaveras 

 Co. to Butte Co. North to British Columbia. Not common. Mar.-June. 



Locs. — Coast Eanges: San Luis Obispo, Shimmers; Stanford, C. F. Baker 549; Fish ranch, 

 Berkeley Hills, Jepson 13,698 ; Ross Valley, Marin Co., Jepson 13,700 ; St. Helena, Jepson 13,697 ; 

 Knights Valley, Sonoma Co., Greene; Knoxville grade to Lower Lake, Jepson 13,699 ; Long Valley, 

 Mendocino Co., Tracy 5802; Phillipsville, Humboldt Co., Tracy 5438. Sierra Nevada: Calaveraa 

 Big Trees, Brew; Chico Creek, Butte Co., Heller 11,230. 



Var. trichocalyx McDer. Peduncles and heads covered with a white pubescence; leaflets 

 obcordate or rhombic, l^A to 5 lines wide, 2 to 8 lines long. — Pacific Grove. 



Refs. — TRiFOLiuir oliganthum Steud. Nom. ed. 2, 2:707 (1841). McDer. N. Am. Sp. Tri- 

 folium 78, pis. 28-30 (1910) ; Jepson, Fl, W. Mid. Cal. 308 (1901), ed. 2, 225 (1911), Man. 540 

 (1925). T. pauciflorum Nutt. ; T. & G. Fl. 1 :319 (1838), type loc. "higher plains of the Oregon", 

 Nuttall; not T. pauciflorum Urv. (1822), T. oliganthum var. sonomense Greene, Man. Reg. S. F. 

 Bay 97 (1894), type loc. Knights Valley, Sonoma Co. T. oliganthum f. sonomense McDer, I.e. 84; 

 Jepson, Fl. W. Mid. Cal. ed. 2, l.c, T' triflorum Greene, Pitt. 1:5 (1887), type loc. Mt. Diablo, 

 Curran. T. filipes Greene, l.c. G6, type loc. Berkeley Hills, Greene. T. hexanthum Greene, Muhl, 

 2:215 (1906), above Pollasky, Madera Co., Heller 8145. Var. trichocalyx McDer. l.c. pi. 31; 

 Jepson, Fl. W. Mid. Cal. ed. 2, l.c. Man. l.c. T. trichocalyx Hel. Muhl, 1:55 (1904), type loc. 

 Pacific Grove, Heller 6721. 



10. T. monanthum Gray. Carpet Clover. Stems slender, erect or decum- 

 bent, 1 to 4 inches high; herbage sparingly villous with long scattered hairs or 

 glabrous; leaflets obovate to oblanceolate, mostly retuse, sparingly toothed, 1 to 4 

 lines long; stipules sheath-like, subscarious, lanceolate, entire or nearly so; heads 

 1 to 4-flowered ; involucre very small, 2 or 3-parted and often unilateral, the lobes 

 bifid; calyx 1 to 2 lines long, its teeth subulate, shortly acuminate, thin; corolla 

 white or sometimes lavender, 4 to 6 lines long; pods 1 to 3-seeded. 



Moist meadows and springy places, forming mat-like colonies, 5000 to 11,500 

 feet : high mountains of coastal Southern California ; Sierra Nevada from Tulare 

 Co. to Plumas Co. ; White Mts. Western Nevada. June-Aug. 



Locs. — Ontario Ridge, San Gabriel Mts., Peirson 92 ; Mt. Pinos, Ventura Co., Hall 6526 ; 

 Upper Funston Mdw., Chagoopah plateau, Kern Canon, Jepson 5011; Mt. Silliman, Jepson 741; 

 Sonora Pass, A. L. Grant 273; Plumas Co., E. M. Austin. White Mts.: North Fork Crooked 

 Creek, Jepson 7274; Sheep Mt., Jepson 7336. 



Var. parvum McDer. Stems many from the base, diffuse or decumbent, 4 to 12 inches high, 

 herbage conspicuously pubescent; stipules entire or with few teeth; heads 2 to 4-flowered; in- 

 volucres very small, % to as long as the calyx-tube ; calyx-teeth lanceolate-subulate, longer than 

 in. the species. — Sierra Nevada from Nevada Co. to Fresno Co., 3500 to 9000 feet: Donner Lake, 

 Sonne 422; Kennedy Mdw., Middle Fork Stanislaus River, Jepson 6538; McClure Fork Merced 

 River, Jepson 4429a; Huckleberry Creek, Huntington Lake, Jepson 13,067, 



