131 LEGUMIXOS/E. TKIFOLUM. 



slender, 8-16 inches high, from a stout perennial root, erect or ascending: 

 stipules linear-lanceolate, acuminate, a Inate to above the middle: leaflets 

 narrowly oblong to linear, 1-2 inches long, acuminate, denticulate: flowers 

 white, in dense oblong or ovate spikes, 6 lines long, rertexed; tube of the 

 calyx very villous, a line or less long, the subulate-setaceous teeth about 

 half as long as the petals, silky-plumose: ovary 4-ovuled, In open places 

 that are wet in spring, Oregon to California. 



T. Hariieyensis Howell P. C. PL Coll. of 1887. Glabrous or nearly so ; 

 stems erect ; 6-18 inches high, from a creeping perennial root : stipules linear 

 to lanceolate, entire or dentate, an inch or more long; leaflets linear to ob- 

 lanceolate, irregularly dentate, 1-3 inches long, appressed pubescent be- 

 neath ; flowers in dense oblong heads, on rather long pedicels, at length 

 rettexed: tube of 4he calyx appressed-pubescent, less than a line long, 

 the subulate teeth 2-3 lines long, less than half as long as the petals : ovary 

 densely tomentose. In alluvial prairies, Harney valley southeastern 

 Oregon. 



T. Oregannm Howell Eryth. i, 110. Perennial; stems decumbent or 

 ascending, 6-8 inches long; herbage glabrous or the petioles and peduncles 

 appressed-silky ; stipules linear or the upper ones lanceolate, acute, entire 

 or serrate above the middle ; leaflets linear-oblong to lanceolate, entire or 

 denticulate, 6-12 lines long; flowers pinkish or light red in loose subumbel- 

 late heads, the short pedicels reflexed in age; tube of the calyx minutely 

 vilfous. a line long, the subulate-setaceous teeth twice longer: ovary 

 smooth, stipitate, 3-4-ovuled. In moist places, eastern base of the Coast 

 Mountains, near Waldo, Josephine Co., Oregon. 



* * GLibrous perennials : teeth of the calyx subulate, rigid, con- 

 torted, twice longer than the tube : flowers sessile, not reflexed : sti- 

 pules lanceolate, acuminate. 



T. altissiiuum Dougl. Hook. Fl. i, 130, t, 48. Erect, stout, a foot or 

 more high : stipules very long, toothed ; leaflets narrowly oblanceolate, 

 very acute, 2 inches long, strongly- veined, the veins excurrent: flowers in 

 dense oblong or ovate spikes, 6-8 lines long ; lower tooth of the calyx 

 straight, the others curved or twisted: petals red: ovary smooth, 2-ovuled. 

 Eastern Oregon and Washington to Idaho. 



* * * Glabrous throughout: teeth of the calyx straight, scarcely 

 longer than the tube: stipules lanceolate to ovate: flowers on very 

 short pedicels, at length reflexed: perennials. 



T. Beckwithii Brewer Watson Proc. Am. Acad. xi, 128. Stout: leaflets 

 oblong to oblanceolate, obtuse or acute, 1-2 inches long, coarsely veined 

 and toothed : flowers 7-9 lines long, in dense globose heads ; teeth of the 

 calyx linear-subulate : ovary 2-6-ovuled. Southern Idaho to northern 

 California. 



T. Kingii Watson Bot. King, 59. Slender, 6-8 inches high: stipules 

 lanceolate to ovate, entire or the upper ones dentate ; lower leaflets round- 

 ovate to oblong, obtuse, upper ones linear-oblong to lanceolate, acute, all 

 "serrate: flowers in oblong spikes, the rachis often produced above the 

 head with a few spinescent bracts; teeth of the calyx thin, subulate, a 

 line long, but little if any longer than the tube, about one-third the 

 length of the purplish corolla. In moist places, eastern base of the Cas- 

 cade Mountains at Camp Polk, Oregon, to California, Utah and Montana. 



T. Howellii Watson Proc. Am. Acad. xxiii, 262. Stems stout, erect, 1-3 

 feet high : stipules of the lower leaves narrowly lanceolate, of the upper 

 ones ovate, all entire: petioles short; leaflets mostly cuneate-oblanceolate, 

 1-3, inches long irregularly-toothed peduncles axillary, longer than the 

 leaves: flowers white, in rather dense ovate or oblong heads, 4-6 lines 

 loni* ; teeth of the calyx subulate, about as long as the tube; upper petal 

 oblong, C.-7 lines long, much longer than the others, free ; ovary 2-ovuled; 



