280 Umbellaceae 
depressed ; style short: oil-tubes |—3 in each interval, 2-6 on the commissure side. W. 
E. (Gk. sion=the name of some marsh plant.) W. E. 
S. cicutaefolium Schk. 
BERULA 
Perennial, glabrous, aquatic,» 2—9 dm. high (ours). Leaves |-pinnate; in ours 
the leaflets 10—18, linear to oblong or ovate, serrate to laciniately lobed, 2—8 cm. long. 
Flowers white; involucre and involucels of narrow bracts, usually conspicuous. Calyx- 
teeth minute. Fruit flattened laterally, nearly round, emarginate at base, glabrous; car- 
pels nearly globose; ribs very slender, inconspicuous; stylopodium conical; oil-tubes close 
together, many. (The Latin name of the Water Cress.) W. E. 
B. erecta Cov. 
OENANTHE 
Perennial, glabrous, mostly aquatic; stems 6—15 dm. high (ours). Leaves ter- 
nate or pinnate or decompound (ours ternate and 2-pinnate) ; in ours leaflets ovate, acum- 
inate, toothed, often lobed at base, |—2.5 cm. long. Flowers white; umbels many- 
rayed (ours); involucre usually present; involucels present (ours). Calyx-lobes rather 
prominent. Fruit globose, slightly flattened laterally, 4 mm. long (ours), glabrous; 
ribs obtuse, wide, corky, lateral ones largest; stylopodium short, conic; oil-tubes 2 on the 
commissure side. (Gk. oinos—wine, anthos—a flower: some species were used for 
scenting wine.) W. C. QO. sarmentosa Presl. (Water Celery) 
LILAEOPSIS (Crantzia) 
Perennial, small, glabrous, creeping and rooting in the mud. Leaves reduced to 
hollow cylindric awl-like petioles, jointed by transverse partitions, 3—18 cm. long 
(ours). Flowers white; involucre-bracts minute; umbel simple, few-flowered: peduncles 
2—4 cm. long (ours). Calyx-teeth small. Fruit globose, slightly flattened laterally, 
glabrous; ribs filiform, lateral ones very thick and corky; stylopodium depressed; oil- 
tubes | in each interval, 2 on the commissure side. (From Lilaea, a genus which it 
resembles, +-Gk.. opsis—like.) W.  (C. lineata for our region. ) 
L. occidentalis C. & R. 
SPHENOSCIADIUM 
Perennial; stem nearly simple, stout, glabrous up to the umbel, 3—15 dm. high 
(ours). Leaves |—2-pinnate; leaflets in ours oblong to linear-lanceolate. Flowers white 
to purplish, scarious; umbel 4—15-rayed (ours) ; flowers and fruit sessile on an enlarged 
receptacle forming compact heads; involucre none; umbel tomentose. Calyx-lobes none. 
Fruit flattened dorsally, cuneate-obovate, 5 mm. long (ours), hirsute; ribs strong at base, 
winged above; stylopodium small, conic; oil-tubes | in each interval, 2 on the com- 
missure side. (Gk. sphen=a wedge, skiadion—an umbrella; probably referring to the 
form of the fruit.) E. (Selinum capitellatum. ) 
S. capitellatum Gray 
LIGUSTICUM LOVAGE 
Perennial; roots large, aromatic. Leaves usually large, ternately and often again 
pinnately compound, or in a few only |-pinnate. Flowers white or pinkish; involucre 

