to 2 inches long, acute or obtuse, toothed and cleft: umbel long- 
peduncled, 2 to b-rayed, mostly naked; rays slender, spreading, 2 
to 4 inches long; pedicels 2 to 12 lines long: fruit (not including 
the attenuate base) 5 to 6 lines long, about a line wide, with not very 
prominent ribs, and small groups of strengthening cells: sty lopo- 
dium and style but a quarter line long, the former short conical: 
seed-face concave. (Fig. 182.) — O. hrevistyh's Torr. & Gray, FI. 
i. 088, in part. 
In the mountains, from S. California to Alaska, and eastward to Utali, 
Colorado, Montana, and Lake Winnipeg {Macoun). FI May and June. 
2. O. brevistylis DC. Prodr. iv. 232. Rather stout, vil- 
lous-pubescent: leaves 2 to 3-ternate; leaflets 2 to 8 inches long, 
acuminate, much cleft and toothed : umbel 4 to 0-raved, with invol- 
ucre and involucels of few bracts; rays stout, somewhat spreading, 
1 to 2 inches long; pedicels 8 to 5 lines long: fruit (not including the 
attenuation) 6 lines long, a line or more wide, with m.ore promi- 
nent ribs, and large groups of strengthening cells: stylopodium 
and style half line long, the former slender conical : seed-face 
more deeply concave. (Fig. 134. ) 
Throughout the northern states and Canada, extending southward 
along the mountains to N. Carolina. Ft. May and June. 
3. O. longistylis DC. Prodr. iv. 232. Stout, from sweet 
aromatic roots, glabrous or slightly pubescent: leaves, umbels, and 
fruit as in the preceding: stylopodium slender conical, half lijic 
long, with style a line or more long: seed-face more deeply and 
broadly concave. (Fig. 135.) 
Throughout the northeastern states and Canada, extending southward 
to Virginia and Tennessee, and westward to Dakota and N. W. Territory 
{Macoun). 
* * Fruit 'without caudate attenuation at base. 
4. O. brachypoda Ton-, in Durand, Pi. Pratt. 89. Stout, 
from sweet aromatic roots, pubescent or sometimes glabrous; 
leaves ternately compound (often appearing pinnate after the first 
division) ; leaflets an inch or so long, acute, laciniately lobed or 
toothed; umbel 1 to 4-rayed, with inv’olucre and involueels cf 
linear bracts, the latter equalling or exceeding the flowers; rays 
1^ to 4 inches long; pedicels about a line long: fruit 6 to 8 lines 
long, 2 lines wide, short attenuate at base, rough-bristly on the 
very proipinent ribs; groups of strengthening cells larger stylopo- 
