ORDER LXI. OEBELLIFER^:. 335 



Seeds somewhat semi-terete. Leaves ternate or 2 — 3 ternate. 

 Involucre composed of a few short, subulate leaflets; involucels 

 nearly the same. 



1. L. act.eifo ltum, (Micb.) (Angelica lucida of Elliott.) Root 

 large, with a strong odor ; a favorite food for hogs. Leaves triter- 

 nately divided ; segments ovate, with deep serratures. Umbels numer- 

 ous, forming loose, naked, somewhat vertieillate panicles, all but the 

 terminal one abortive. Fruit ovate-oblong. — White. If. July. Mid- 

 dle Geo. 3 — 6 feet. Lovage. White-root. 



Tribe V.— ANGELICE'^E. 



Fruit with a double-winged margin. Umbels compound. 

 Seeds convex on the back. 



Genus XVI.— ARCHANGEL'ICA. Raf. 5—2. 

 (From the Greek arche, original, and angelica.) 



Limb of the calyx o-toothed. Petals ovate, entire, with an 

 incurved point. Fruit compressed on the back. Carpels with 

 3 dorsal ribs, with 2 marginal wings. Perennial herbs. Leaves 

 bipinnately divided ; petioles dilated at the base. Involucre 

 almost wanting; involucels many-leaved. 



1. A. hirsu'ta, (T. & G.) (Angelica triquinata of Elliott.) Stem pu- 

 bescent near the summit. Leaves pinnate ; segments ovate-oblong, 

 serrate, the upper connate. Umbels on long peduncles, densely pubes- 

 cent ; rays rather long, spreading; involucels 6 — 10-leaved, sometimes 

 unilateral. Fruit slightly winged, oblong. — White or greenish. If. 

 July — Aug. So. Car. and Geo. 2 — 5 feet. 



2. A. denta'ta, (Chap.) Stem slender, glabrous, finely striate. Lower 

 leaves ternately divided ; petioles long and slender ; segments ovate- 

 lanceolate, coarsely toothed, cuueate ; upper leaves with narrow seg- 

 ments and pinnatifid, toothed. Involucel 4 — 6-leaved. Petals broadly 

 ovate ; wuigs of the seed thin. — Middle Florida. 



Tribe VI.— PEUCEDA'NEiE. 



.Fruit compressed on the back, with an entire, marginal 

 wing. Umbels compound. 



Genus XVII.— TIEDMAX'XIA. D. C. 5—2. 

 (In honor of Prof. Tiedrnann, of Heidelberg.) 



Limb of the calyx 5-toothed. Petals ovate, with a narrow, 

 indexed point. Fruit compressed on the back, obovate. Cur- 

 pels ribbed ; lateral ones dilated into a broad margin. Seeds 

 flat. A biennial plant. 



1. T. teretifo'lia, (D. C.) Stem fistulous, erect, branching above. 

 Leaves simple, terete, 4 — 8 inches long, divided by numerous transverse 

 partitions. Involucre many-leaved, subulate, persistent ; involucel niir»- 



