87 
parted below, then confluent, finally toothed above, the larger seg- 
ments more or less laciniately toothed: umbel of numerous rays, 
with involucels of elongated (half inch long) linear bractlets; rays 
2 inches long ; pedicels 5 or 6 lines long; fruit (immature) with long 
slender conical stylopodia as long as the styles, and prominent 
winged ribs: oil-tubes 5 or 6 in the intervals, 6 to 8 on the com- 
missural side: seed strongly flattened dorsally. 
Low grounds, near headwaters of Jocko Kiver, Montana, July 16, 1883 
(Canby 155, distributed as L. scopulorum, var. ?, with the herbarium note, 
“perhaps a sp. nov.”) 
The foliage of this species is very different from that of any other 
Ligusticum, but the mature fruit is needed to complete the description. 
6. L. filicinum Watson, Proc. Am. Acad. xi. 140. Stem 
ll^ to3 feet high, more or less leafy, with glabrous inflorescence: 
lower leaves often very large, once or twice ternate, then bipin- 
nate; the narrow segments deeply pinnatifid to entire: umbel of 
numerous rays, with involucels of one or fev 7 small linear bractlets; 
rays (fruiting) 1 to 2 inches long; pedicels 3 to 5 lines long; fruit 
narrowly oblong, 3 to 3^ lines long, with somewhat prominent 
conical stylopodia, and prominent somewhat winged ribs: oil- 
tubes 3 to 5 in the intervals, 6 to 8 on the commissural side: seed 
strongly flattened dorsally, with angled back, and face slightly 
concave, with no central ridge. 
S. Utah, in the Wahsatch and Uintah Mts. { Watson 454, Parry 82, 
Jb»es 1170, Tracy 686, Hooker tfc Gray), northward to Wyoming (Parry 
121), and Yellowstone Park {Tweedy 5). FI. July. 
In Watson’s Eepoit on King'sExped. this was referred to L. apUfolium ; 
and in Am. Nat. ix. 291, it was referred by Parry to L. scopulorum. It 
differs from both of these species chiefly in its more dissected foliage, 
larger more oblong fruit, more dorsally flattened carpels, and the absence 
of any central ridge upon the seed- face. 
f-4 
i. 
L. tcnuifolium Vv^atson, Proc. Am. Acad.xiv. 293. Stem 
slender, 1 to 2 feet high, naked above the base or with a single leaf, 
bearing .1 to 3 glabrous umbels: leaves small, ternate then pin- 
nately decompound, finely dissected with laciniately divided leaf- 
lets, the ultimate segments linear and short: umbel few-rayed (6 
to 12), with involucels of .1 or 2 narrov^^ly linear bractlets; rays 
about an inch long; pedicels 2 to 3 lines long: fruit oblong, to 
2 lines long, with narrow ribs: oil-tubes 3 to 5 in the intervals, 6 
to 8 on the commissural side. 
