226 LEGUMINOSAE. 



large involucre almost enclosing the flowers; calyx surpassing the corolla, 

 its teeth plumose, setaceous, 2 teeth once or twice forked; flowers rose-red, 

 banner inflated; pod --seeded. 



Ridges of the foothills but not common. Var. andrewsii Gray. Villous 

 pubescenl throughout, less procumbent and larger than the species; heads large; 

 involucre villous pubescent on both surfaces, 10 to 16-lobed, the lobes flabellate; 

 t oners large, purple or lilac, the showy corollas much longer than the calyx. — 

 Near the coast from Mendocino to San Luis Obispo. Rare. 



11. T. cyathiferum Lindl. Strictly glabrous, 8 to 12 in. long, slightly de- 

 cumbent; stipules broadly lanceolate; involucre bowl-shaped, the scalloped 

 margin unequally toothed; flowers small, white or light pink, soon turning 

 brown; calyx-teeth remarkably forked, in all 11 to 17 forkings at the top. 



Mendocino Co. and the Sierra Nevada, north to British Columbia. 



12. T. microcephalum Pursh. Canescently pubescent or nearly glabrous, 

 slender, ascending % to 2 ft. high; stipules ovate, acuminate; leaflets ob- 

 cordate to oblanceolate-retuse, serrate; involucre 7 to 10-lobed, the lobes lanceo- 

 late, entire with scarious web-like margins; heads small, compact; flowers 

 small, light pink or white; calyx shorter than corolla; teeth simple, pungent, 

 the margin scarious; pod 1 or 2-seeded. 



H'llsules and valleys; common. Mar.-May. 



13. T. ciliatum Nutt. Glabrous throughout, 1 to 2 ft. high, stout, 

 fistulous; stipules large, ovate-lanceolate, the margins scarious; leaflets large, 

 % to 1% in. long, elliptic or oblong, otuse, entire to serrulate; heads conical 

 in flower, reflexed in fruit; flowers pinkish purple; calyx-teeth remarkably 

 C'liate; banner inflated at base, tapering toward the apex; pod 1 to 2-seeded. — - 

 (Tri folium ciliolatum Benth.) 



Plains and valleys throughout California; Sierra Nevada to about 5000 

 ft. Apr.-June. 



14. T. gracilentum T. & G. Pin-point Clover. Glabrous, erect to pro- 

 cumbent, or spreading; stems slender, % to 1% ft. long; stipules ovate-lanceo- 

 late; heads numerous, small, 5 lines long or less, reflexed in fruit, the rachis 

 projecting; calyx-teeth subulate, entire, shorter than the corolla; pod 1 to 

 2-seeded. 



Very common throughout the coast counties. Var. ixcoxspicuum Fern. 

 Smaller but like the species in habit; stems 4 in. high or less; flowers light 

 purple to white; banner broader. — Common throughout western California. 

 Leaves exhibit a variety of beautiful colorings, from tiny white spots to red, 

 brown and purple. 



T. breweri Wats. Plant pubescent, glaucous throughout; stems slender, 

 diffusely spreading; leaflets spatulate, obcordate or ovate, coarsely dentate; 

 heads small, loose; flowers pedicellate, cream-white, in loose heads. — Abundant 

 in the Sierra \e\ada; found occasionally in the Sacramento Valley. 



15. T. bifidum Gray. Erect, very slender; stipules ovate-lanceolate, se- 

 taceously acuminate, entire; leaflets remarkably bifid 1 .-, to '•_. their length, 

 often with a prominent tnucro in the notch, the lobes coarsely toothed at apex: 

 peduncles pubescent at base of heads; heads small, in age reflexed; flowers 



purple or lighl pink; calyx pubescent; banner characteristically patterned 



by the peculiar venation, 



Coasl Range hills, infrequenl in the typical form. Var. decipiens Greene. 

 A leaf variety, leaflets linear-cuneate to obcordate, entire or slightly emarginate 



at apex. — More common than the species; widely distributed. 



