(39 
long; pedicels 2 to 4, lines long; flowers white: fruit somewhat 
obovate, glabrous, 8^ to 6 lines long, 2 to 4 lines broad, the 
usually narrow wings in robust specimens sometimes becoming 
almost as broad as body, filiform or obsolete dorsal and intermed- 
iate ribs: oil-tubes exceedingly small, often obscure, 6 to 8 in the 
intervals, 8 to 10 on the commissural side: seed-face concave. 
(Fig. 62.) 
California, San Bernardino county, high ridges north side of 01.1 Baldy 
Mt. (i’aris/i 1942, in June 1887), Bear Valley, 6,500 feet altitude (Paris/i 
1828, in June 1886), Colusa county. Bear Valley {M. K- Cti>rran, in May 
1884). 
g 6. Mostly tall and often stout, from long fleshy roots: leaves not so 
much divided, with usually broad or elongated segments: bractlets of the 
involucel small or none: flowers mostly yellow: fruit glabrous, narrowly 
winged (except in 3 species): oil-tubes mostly large and solitary in the in- 
tervals (3 to 5 in a few species). 
* Leaves with narrowly linear more or less elongated 
leajiets. I 
j" Low : Jlowers white. 
82. P. Cusickii Watson, Proc. Am. Acad. xxi. 453. Dwarf, 
caulescent, glabrous, from a thick elongated root: stems 2 to 5 
inches high, bearing a single leaf: leaves 1 to 2-ternate, the seg- 
ments with 3 to 5 linear acute lobes from 3 lines to an inch or 
more long: umbel with 1 to 3 short fertile rays, and involucels of 
narrow acuminate bractlets, which are distinct or more or less 
united; pedicels very short: fruit oblong-elliptical, 4 to 5 lines 
long, the thin wings as broad as the body or narrower: oil-tubes 
1 to 3 in the intervals, 4 or 6 on the commissural side: seed-face 
concave. (Fig. 63.) 
Oregon, on the highest summits of Eagle Creek Mts., Union county 
{Gusich, in 1885), subalpine ridges of Blue and Powder Elver Mts. {Cusiclc 
1280, in 1886). El. July and August. 
Eesembles small forms of P. simplex. 
"I* Taller'. Jlowers yellow. 
33. p. simplex Nutt., Watson, King’s Rep. v. 129. Cau- 
.. lescent or acaulescent, puberulent, often tall and stout: leaves ter- 
nate or biternate; leaflets from very narrowly linear (almost fili- 
form) to linear-lanceolate, 2 to 4 inches long: umbel unequally 3 
to 15-rayed, with involucels of lanceolate or setaceous bractlets; 
rays to 3 inches long; pedicels 1 to 3 lines long: fruit broadly 
