Umbellaceae . 279 
CARUM CARAWAY 
Glabrous, erect, slender: roots fascicled, tuberous or fusiform. Leaves pinnate; in 
ours the leaflets few, linear. Flowers white; involucre and involucels of few to many 
bracts. Calyb-lobes small but prominent for size of fruit. Fruit flattened laterally, oblong 
to orbicular, glabrous; ribs filiform or inconspicuous; stylopodium conical: oil-tubes large, 
I in each interval, 2—6 on the commissure side. (From Caria, a country in Asia Minor, 
where first found.) 
A. Even the upper leaves twice pinnate; fruit oblong, 4—5 mm. long. W. 
C. carui Lb. (Garden Caraway) 
AA. At least the upper few leaves only once pinnate. 
B. Fruit orbicular, 2 mm. long. W. C. E. 
C. gairdneri Gray 
BB. Fruit oblong, 3—4 mm. long. 
C. Fruit rounded at both ends, with inconspicuous ribs. C. E. 
C. oreganum Wats. 
CC. Fruit narrowed at both ends, with conspicuous ribs. U. 
C. lemmoni ©. & R. 
LEIBERGIA 
Slender, glabrous, from small globose tubers, 1.25 dm. high; stems none. Leaves 
ternate; leaflets 1—7.5 cm. long, filiform, entire or few-toothed, terminal one often again 
1—2-ternate. Flowers white; umbels irregular; involucre none; involucels of a few 
small bracts. Calyx-lobes none. Fruit 8 mm. long, flattened laterally, linear, beaked, 
glabrous; carpels but slightly flattened dorsally; ribs 5, filiform, the 2 lateral a little the 
most prominent and turned inward; stylopodium none; oil-tubes small, | in each interval, 
2 on the commissure side. (Honor of Mr. Leiberg, who collected along the Great 
Northern railroad in 1893.) E. L. orogenioides ©. & R. 
EULOPHUS 
Perennial, glabrous, 3—-15 dm. high (ours 6 dm.); tubers fascicled. Leaves 
pinrately (ours) or ternately compound, leaflets or segments narrowly linear (ours) to 
oblong-linear, mostly entire, the terminal one elongated. Flowers white or pinkish; in- 
volucre from none to prominent (ours) ; umbels long-peduncled, 10—25-rayed (ours) ; 
involucel-bracts several, lanceolate, acuminate, usually scabrous. Calyx-lobes prominent. 
Fruit flattened laterally, ovate to linear-oblong (ours), glabrous; ribs equal, filiform; styl- 
opodium conical; oil-tubes |—5 in each interval, 4—8 (ours 6) on the commissure 
side. (Gk. eu=well, lophos—a plume; apparently referring to the plume-like leaves.) 
E. E. bolanderi ©. & R. 
SIUM WATER PARSNIP 
Perennial, in water or in wet places; ours with stem stout, 6—18 dm. high. Leaves 
pinnate; leaflets serrate (ours) or pinnatifid; leaflets in ours 3—8 pairs, linear to lanceo- 
late, mostly acuminate, 5—12.5 cm. long; in ours submerged leaves when present finely 
dissected. Flowers many, white, involucre and involucels of many narrow bracts, in 
ours umbel many-rayed, rays 2.5—3.7 cm. long. Calyx-lobes minute. Fruit ovate 
to oblong, glabrous, flattened laterally; ribs prominent, nearly equal, corky; stylopodium 
