-MUSENIUM. UMBELLIFER. 265 
BUPLEURUM, 
2-3 feet high: leaves mostly radical, 2-3-ternate, the cuneate-ovate leaflets 
laciniately pinnatifid and toothed, an inch long: umbel long-peduncled, 
6-15-rayed ; rays 1-2 inches long, hispidly puberulent: flowers white or 
pinkish : fruit broadly ovate: oil-tubes numerous in the intervals, 8 or 
more on the commissure. From San Francisco 1o Eastern Nevada. 
Var. nudicaulis Gray l.c. viii, 385. Small; stem scapiform, almost 
leafless, scarcely a foot high. Oregon Hall 1871, not since found. 
23 MUSENIUM, Nutt. T. & G. Fl. i, 642. 
Dwarf resinous dry ground. perennials, from thick elongated 
roots, with pinnate decompound leaves, no involucre and invol- 
ucels of a few narrow bracts. Calyx-lobes prominent. Fruit 
ovate or ovate oblong, carpel with equal filiform ribs, and thin 
pericarp: stylopodium depressed. Oil-tubes usually 3 in the 
intervals, the middle one the largest, 2-4 on the commissure. 
Seed-face broadly concave. 
M. divaricatum Nutt. 1. c.. Decumbent, glabrous: stem short, dicho- 
tomously branching from the base: leaves bipinnatifid, with winged 
rhachis ; segments 3-5-toothed* peduncles 2-5 inches long: umbel 10-25 
rayed ; rays 3-9 lines long, pedicels short: fruit smooth or nearly so, about 
2 lines long; oil-tubes 3 in the interval-, with accessory ones beneath the 
ribs, 4 on the commissure: Seed terete, with rather deeply concave face. 
From the plains of the upper Missouri to Oregon and Brit. Columbia. 
24 EULOPHUS Nutt. DC. Prodr. iv, 248. 
Glabrous perennials from deep-seated fascicled tubers, 1-5 
feet high, with pinnately or ternately compound leaves, narrowly 
linear to cblong-linear mostly entire leaflets, the terminal one 
elongated, involucre and involucels of several lanceolate acumi- 
nate usually scabrous bractlets and long-peduncled umbels of 
white or pinkish flowers. Calyx-lobes prominent. Fruit ovate 
to linear-oblong glabrous. Carpel with equal filiform ribs, and 
thin pericarp. Stylopodium conical, with long and recurved 
styles. Oil-tubes 1-5 in the intervals, 4-8 on the commissur? 
and a small group in the parenchyma of the commissural sulcus. 
Seed-face broadly concave, with a central longitudinal ridge. 
E. Bolanderi C. & R. Rev. Umb. 112. Stems slender, 1-2 feet high; 
leaf divisions more or less pinnately compound: ultimate divisions narrowly 
linear, 6-18 lines long, the terminal enes sometimes much longer, 14-1 line 
wide: uppermost leaves simple: umbel 10-25-ravyed, with prominent in- 
volucre and involucels of scarious ovate-lanceolate abruptly long acumi- 
nate bractlets, longer than the ind rays 5-10 lines long; pedicels 1-2 
lines long: fruit oblong: oil-tubes small 2-5 in the intervals, 6 on the 
commissure, Southeastern Oregon to California. . 
25 BUPLEURUM. L. Gen. n. 328. 
Calyx-lobes obsolete. . Fruit oblong with rather broad com- . 
missure. Carpel with equal very slender or prominent ribs, 
Stylopodium prominent and flat. Oil-tubes wanting or contin- 
uous about the seed-cavity. Ours perennial from a branching 
caudex, with simple entire clasping or-perfoliate stem-leaves and 
