leaves biternate or teniate-quinatc or sometimes simply •.eriiate; 

 leaflets thickish, from ovate to narrowly lanceolate, 1 to 2 inches 

 long, petiolulate, entire or toothed at apex: umbel very unequally 

 6 to 15-rayed, with neither involucre nor involucels; peduncles 

 and rays dilated at summit; rays 1 to 8 inches long; pedicels var- 

 iable, 1 to 9 lines long; flowers yellow: fruit narrowly oblong, 5 

 to 7 lines long, Ij^ to 2}/^ lines bread, narrowly winged: oil-tubes 

 large and solitary in the intervals, 4 on the commissural side: 

 seed-face somewhat concave. (Fig. 68.) 



From California to British Columbia, and eastward to Idalio. Fi May 

 to July. 



38. P. Nuttallii Watson, King's Rep. v. 128. Like the 

 preceding, but smaller, leaves once or twice ternate, with ovate to 

 orbicular leaflets having cuneate to cordate base; fruit ovate to 

 oblong, 4 lines long, 3 lines broad, and very narrowly winged; 

 oil-tubes small, 3 in the intervals, 4 to 6 on the commissural side; 

 seed-face almost plane. (Fig. 69.) — P. latifolium Nutt. Torr. & 

 Gray, Fl. i. 625, not DC. 



N. Nevada, Oregon, and Idaho (>V'i7ro.i-). 



39. P. Brandegei C. & R. Bot. Gazette, xiii. 21(). Short 

 caulescent, glabrous, 6 inches to a foot high, from a thick elong- 

 ated root: leaves ternately decompound, the ultimate segments 

 lanceolate (6 to 12 lines long, Xy^ to 8 lines wide), cuspidate 

 pointed: umbel 6 to 12-rayed, with involucels of few linear or 

 setaceous bractlets; rays 3 to 6 lines long, pedicels not more than a 

 line, both reflexed at maturity; flowers yellow: calyx-teeth evident: 

 fruit (immature) oblong, about 4 lines long and 2 lines broad (un- 

 doubtedly becoming larger), with wings about half as broad 

 as body, and prominent or even slightly winged dorsal and inter- 

 mediate libs: oil-tubes 2 to 4 in the intervals, 4 to 6 on the com- 

 missural side. 



Collected in Canbys N. TranconLinental Survey, in the Walla Walla 

 legion, Washington Territory, May, iss:; (linouler/ft' 7!)9, Tu-ceibj 8,')(i). 



* * * yei'v stout and ta//, ivilh large decompoitnd leaves 

 and linear-oblong seg?nents : fruit the largest in the genus. 



40. P. Suksdorfii Watson, Proc. Am. Acad. xx. 369. Gla- 

 brous, 2 to 8 feet high or more: leaf-segments 1 or 2 inches long, 

 entire or 2 to 8-clcft towards the top: umbel somewhat c([unlly 6 



