91 
lached fruits which (if they belong to this species) are longer than any 
known, being 5 lines long. Certain Alaskan forms referred to this species 
show a remarkable development of involucels, the bractlets being ovate, 
very long acuminate, and several times longer than the head. There has 
been considerable mixing of this species with Ligusticum ScoHctim. in her- 
baria. 
2. C. inaritimum C. & R. Bot. Gazette, xiii. 145. Stems 
2 to 8 feet high: leaflets broad, often round, usually with cordate 
base, very obtuse, dentate or crenate-dentate, 2 % to 3 inches long, 
2^ inches broad: rays 2 to 3 inches long; pedicels 6 to 7 lines 
long: fruit oblong, 3 to lines long, with lateral ribs broader 
than the others, and seed-face concave. (Fig. 96.) 
Washington Territory, wet ocean bluffs, Long Beach, Ilwaco, July 24, 
1886 (L. F. Henderson 384), Astoria {Cooper). 
25. OROGENIA Watson, King’s Rep. v. 120, t. 15.— 
Dwarf, glabrous, nearly acaulescent plants, from tuberous or fusi- 
form roots (underground part of the stem sheathed with large 
scarious bracts), with ternate leaves and linear segments, no invol- 
ucre, involucels of few linear bractlets, and white flowers in sub- 
compound umbels with very unequal rays. 
This very peculiar and distinct genus Is like Erigenia in habit and 
time of blooming, as is said in the original description, but it is far removed 
from it in fruit structure. 
1. O. Unearifolia Watson, 1. c. Stem (or scape) slender, 
rising 1 to 2 inches above gi'ound from a deep-seated round tuber: 
leaves 2 or 3, once or twice ternate, upon slender petioles; leaflets 
entire, 1 to 2 inches long, 1 to 8 lines wide, obtuse: umbels 2 to 
4-rayed, with nearly sessile flowers: fruit 1^ to 2 lines long, 
lateral ribs and commissural projection much more strongly devel- 
oped than in the next. (Fig. 97.) 
Utah, in the Wahsatch {Watson, Jones)) Idaho {Wilcox); Oregon 
{Cusick); and Washington Territory {Suksdorf). FI. in early spring. 
2. O. fusiformis Watson, Proc. Am. Acad. xxii. 474. 
Stouter, 3 to 6 inches above ground, from a long fusiform root: 
leaves more compounded, 2 or 3-ternate, with terminal leaflets 
often 3-parted; leaflets an inch or less long: umbels 6 to 10- rayed; 
rays longer: fruit about 3 lines long, lines broad, lateral ribs 
and commissural projection smaller. (Fig. 98.) 
California, Plumas county {Mrs. R. M. Austin), Nevada county {C. F. 
Sonne). FI. in early spring. 
