ORDER LXI. UMBELLIFER^!. 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. actjeifo'lium, (Mich.) (Angelica lucida of ElHott.) 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 verticillate panicles, all but the 

 terminal one abortive. Fruit ovate-oblong. — White. 2£. July. Mid- 

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



Tribe V.— ANGELICEOE. 



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 5-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. <fc 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. 2{. 

 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, cuneate ; upper leaves with narrow seg- 

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

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



Tribe VI.— PEUCEDA'NE^E. 



Fruit compressed on the back, with an entire, marginal 

 wing. Umbels compound. 



Genus XVII.— TIEDMAN'NIA. D. C. 5—2. 

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



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

 inflexed point. Fruit compressed on the back, obovate. Car- 

 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 aim* 



