254 RyDBERG: STUDIES ON THE 
about 4 mm. wide, short-pubescent: wing-margins crenate or 
lobed, not fenestrate: style scarcely exceeding the wing-margin. - 
Uran: Silver Reef, 1894, WZ. E. Jones, 51636, in part (type 
in U. S. Nat. Herb.), 57¢9d and 5139d. 
Trifolium lividum sp. nov. 
Perennial, densely cespitose and tufted : branches of the caudex 
short and covered by the remnants of the leaf-bases and scarious 
stipules ; free portion of the latter subulate-filiform : petioles 4-15 
cm. long, slender, glabrous; leaflets linear-lanceolate or oblanceo- 
late, very acute at both ends or cuspidate at the apex, 3-4 cm. 
long, glabrous above, sparingly appressed hairy beneath, green, 
entire-margined: peduncles 1-1.5 dm. high, sparingly appressed 
hairy: heads nearly 2 cm. in diameter; bracts linear-subulate to 
almost filiform, longer than the calyx-tube, glabrous, slightly if 
at all scarious-margined: calyx-tube 2.5-3 cm.long; teeth subu- 
late-filiform, 4-5 mm. long: corolla about 12 mm. long, light 
purple with a darker keel. 
This species is nearest to 7. dasyphyllum, but is a larger, more 
glabrous and greener plant, and with much larger and narrower 
bracts. It grows at an altitude of about 3000 m. 
CoLorapo: Graymount, 1895, P. A. Rydberg, 2442 (type in 
herb. N. Y. Bot. Garden); Alpine Tunnel, 1897, C. Z. Shear. 
Trifolium pedunculatum sp. nov. 
Perennial, with a somewhat cespitose base: stems 2-4 dm. 
high, rather slender, striate, glabrous or with a few appressed 
hairs: stipules 2-3 cm. long, lanceolate, %4 or % of their length 
adnate to the petioles, denticulate : petioles 4—6 cm. long, slender ; 
leaflets 3, oblanceolate to linear, acute, finely denticulate, 2-3.5 
cm. long: peduncles 1 dm. or more long: heads 15-18 mm. in 
diameter, not bracteate: flowers subsessile, 10-12 mm. long, in 
fruit not reflexed : calyx-tube 2 mm. long, glabrous below, pubes- 
cent towards the throat ; calyx-teeth subulate, the lower 3—3.5 mm. 
long: corolla purple. 
This species is nearest to 7. /ongipes, but differs in the smaller 
purple flowers and the calyx which is glabrous below. 
IpaHo: Long Valley, 1895, Z. F. Henderson, 3096 (type in 
U. S. Nat. Herb.) ; near Sawtooth, 1896, B. W. Evermann, 592. 
Lotus longebracteatus sp. nov. 
Perennial, cespitose, decumbent : stems 2~3 dm. long, diffusely 
branched, grayish strigose: leaves thick, grayish strigose with a 
