1893. | Notes on North American Umbellifere. 55 
ARRACACIA DONNELLSMITHI C. & R.—Volcan de Agua, 
Dept. Zacatepequez, at an altitude of 10,000 ft. Collected 
near the type locality by W. C. Shannon, June, 1892. 
Arracacia Luxeana, n. sp.—Probably a tall perennial, 
branching, glabrous: leaves ternate to triternate; petioles 
wholly inflated; leaflets ovate to lanceolate, 2.5 to 7.5™ 
long, sharply serrate, glabrous: peduncles short (10 ta -12™ 
long) or wanting: umbel somewhat unequally 15 to 30-rayed, 
with involucre wanting or of a single leaflet; involucels four 
to eight, foliaceous, lanceolate, sharply serrate, often 2.5 
long; rays § to 10™ long; pedicels 8 to 14" long: fruit ovate, 
acute, 6 to 8™ long, glabrous, flattened laterally, with slender 
conical stylopodium: carpel terete, with five prominent ribs; 
commissure narrow; oil tubes solitary in the intervals, two on 
the commissural side: seed with deeply sulcate face and fur- 
rowed under,the intervals.—In the forest near San Miguel 
Uspantdn, Dept. Quiché, at an altitude of 6,000 to 12,000*, 
April, 1892, no. 3,354. Collected by Lux. 
EULOPHUS PEUCEDANOIDES Benth. & Hook.— Santa Rosa, 
Dept. Santa Rosa, at an altitude of 3,000 to 4,000°, May, 
1892, no. 3,353. Collected by Heyde & Lux. - 
ENANTIOPHYLLA. n. gen.—Calyx-teeth obsolete. Fruit 
oblanceolate, flattened dorsally, glabrous. Carpel strongly 
flattened dorsally: dorsal and intermediate ribs prominent, 
acute; lateral ribs winged. Stylopodium slender, conical; 
styles furrowed on ventral face, slightly thickened above but 
not capitate. Ojil-tubes solitary in the intervals, two on the 
commissural face. Seed strongly flattened dorsally, with a 
broad, shallow excavate face and furrowed under the inter- 
vals.—Tall glabrous perennials, with opposite ternately-com- 
pound leaves, lanceolate acute leaflets, linear bracts and 
bractlets, and white (?) flowers. 
This genus belongs to Bentham and Hooker's subtribe 
ANGELICE&, From Angelica and Prionosciadium it differs 
chiefly in its conical stylopodium and opposite leaves. In 
fact, in the latter character it differs from most genera of 
Umbellifere, and has suggested- the generic name. The 
Senus is peculiar in having the carpel developed at the base 
into a broad stipe or foot, much as in Dr. Robinson’s new 
genus Coulterophytum, but not so marked. It has sev 
- other characters in common with the latter genus, but has a 
