210 BOTANICAL GAZETTE. [ August, 
high, glabrous or puberulent: leaves bipinnate, the ultimate 
united often toothed bractlets; rays from almost wanting to 
an inch long: flowers white: fruit sessile or nearly so, ovate, 
rough-puberulent, 3 lines long, 14 lines broad, with very 
narrow wings, and filiform or almost obsolete dorsal and inter- 
mediate ribs: oil-tubes (sometimes wanting) very obscure, 3 
to 6 in the intervals, 1 in each rib, and 6 on the commissural 
side: seed-face plane.—Washington Territory, Cimcoe Mts. 
(Howell, in 1881), Cascade Mts. (Brandegce, in 1882, no. 
320 of Canby’s N. Transcontinental Survey), mountain sum- 
mits near Columbus ( Swksdor/), summit of high hills, Klickitat 
Co. (Howell 411, 412,413); Oregon, high hills near the Dalles 
(Howell C., in 1882), also Alkali (Howell 830, in 1882). 
Flowers May, June. 
With pleasure we dedicate this mountain Peucedanum to 
one who has so long been a student of this perplexing genus. 
oil-tubes 2 to 4 
side.—Collected in Canby’s N. Transcontinental Survey, 12 
the Walla Walla region, Washington Territory, May, 1883 
( Brandegee 799, Tweedy 856). 
v Peucedanum Hendersonii, n, sp. Acaulescent, from a shal- 
A nearly globose constricted tuber (4 to 1 inch in diameter); 
lete dorsal and intermediate ribs, and a rather prominent 
