i;)4 LEGUMIXOS^. trifolium. 



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

 stipales linsar-lanceolate, acuminate, adaate 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, refiexed; tube of the 

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

 halt' as long as the petals, silky-pliimose: ovary 4-ovuled, In open places 

 that are wet in spring, Oregon to California. 



T. Harneyensis Howell P. C. PI. Coll. of 18S7. 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 

 reflexed: tube of the 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. Oreganum 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 tlie 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 

 villous, 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. 



* * GUbrous p3rennials: teeth of the calyx subulate, rigid, con- 

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

 pules lanceolate, acuminate. 



T. aUlssimnm Dou?l. Hook. Fi. 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 : pstals 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. BfCkwitliii Brewer Watson Proc. Am. Acad, xi, 128. Stout: leaflets 

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

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

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

 Criiifornia. 



T. Kini^U Watson Bot. King, 59. Slender, 6-S inches high: stipules 

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

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

 serr.ite: flowers in oblong spikes, the rachis often produced above the 

 head with a few spineacent 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 Maantains at Cump Polk, Oregon, to Ctlifornia, Utah and Montana. 



T. Howellli Watson Proc. Am. Acad, xxiii, 262. Stems stout, erect, 1-8 

 feet high : stipules of the lower leav-es narrowly lanceolate, of the upper 

 ones ovate, all entire: petioles short; leaflets mostljf 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 

 long; teeth of the calyx subulate, abqnt as long as the tube; upper pet^l 

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



