520 UMBELLIFEREAE. (Vor. II. 
1. AEthusa Cynapium LL. Fool’s 
Parsley. (Fig. 2656.) 
AEthusa Cynapium I,. Sp. Pl. 256. 1753. 
Erect, leafy, dichotomously branched, rather 
slender, 1°-234° high. Leaves 2-3-pinnate, the 
lower slender-petioled, the upper nearly sessile; 
petiole-bases dilated; ultimate segments linear, 
acutish; umbels long-peduncled, 2/-3’ broad in 
fruit, 8-12-rayed; rays %4/-14’ long; pedicels 
1//-4’/ long; bractlets of the involucels 2-4, 
linear, turned downward; fruit about 114’ long, 
somewhat longer than broad. 
In waste places, Nova Scotia to New Jersey, west 
to Minnesota. Poisonous. Adventive from Europe. 
Called also False or Dog’s Parsley, Dog-poison, 
and Fool’s Cicely. June-Sept. 
15. COELOPLEURUM Ledeb. Fl. Ross. 2: 361. 1844. 
Stout and tall maritime perennials, with large 2-3-ternate leaves, inflated petioles, and 
compound umbels of greenish white flowers. Involucre of a few linear deciduous bracts, 
ornone. Involucels of numerous linear bracts. Calyx-teeth obsolete. Petals with an in- 
flexed apex. Stylopodium depressed. Fruit oblong, scarcely flattened; dorsal and inter- 
mediate ribs prominent, corky-thickened, the lateral ones slightly broader, acute but not 
winged; oil-tubes solitary in the intervals, 1-2 under each rib and 2-4 on the commissural 
side. Seed loose in the pericarp, its face flat or slightly concave. [Greek, hollow-ribbed.] 
Two species, one widely distributed in the northern hemisphere, the other on our northwestern 
coast. 
1. Coelopleurum Gmélini (DC. ) Ledeb. 
Sea-coast Angelica. (Fig. 2657.) 
Angelica Archangelica Schrank, Denks. Regens. 
Bot. Gesell. r: Abth. 2, 13. 1818. Not L. 1753. 
Archangelica Gmelini DC. Prodr. 4: 170. 1830. 
Archangelica peregrina Nutt.; T.& G. Fl. N. A. 
I: 622. 1840. 
Coelopleurum Gmelini Ledeb. Fl. Ross. 2: 361. 1844. 
Stout, branching, 2°-3° high, glabrous below, 
the umbels and upper part of the stem puberu- 
lent. Lower leaves large, 2—-3-ternate, the seg- 
ments thin, ovate, acute or acuminate, sharply 
and irregularly dentate and incised, 14/-2!4’ 
long; umbels 3/-5’ broad, 10-25-rayed; rays 
1/-2’ long; pedicels slender, 3//-6’” long; fruit 
oblong or nearly globose, 24’/-314’’ long, the 
lateral ribs scarcely stronger than the others. 
Sea-coast, Greenland to Massachusetts, on the 
lower St. Lawrence river and the Pacific coast. 
Also on the coasts of eastern Asia. Summer. 
16. LILAEOPSIS Greene, Pittonia, 2: 192. 1891. 
(CRANTZIA Nutt. Gen. 1: 177. 1818. NotScop. 1777. 
Small creeping glabrous perennial marsh herbs, the leaves reduced to linear terete sep- 
tate hollow petioles, with simple umbels of white flowers. Bracts of the involucre several, 
small, Calyx-teeth acute. Petals concave, acute, incurved atthe apex. Stylopodium conic. 
Fruit glabrous, globular, somewhat flattened laterally. Carpels nearly terete, the dorsal and 
intermediate ribs filiform, the lateral ones much larger and corky-thickened, the commissural 
faces each with a corky longitudinal projection; oil-tubes solitary in the intervals. Seed 
terete. [Greek, resembling the genus Zi/aea.] 
_ Agenus of wide geographic distribution, usually regarded as monotypic, but probably consist- 
ing of several species. 
