290 LXVII. UMBELLIFER^E. ARCHANGELICA 



tapering. Stem a foot high, nearly simple, striate, smooth. Leaves petiolate 

 Leaflets 1 2J' long, dark green, smooth and shining, entire at base, serrate 

 above. Fruit 4 5" long. Jl. 



2. L. ACTJEFOLIUM. Michx. (Thaspium. Nuit.} 



Lvs. triternate, with ovate, dent-serrate leaflets ; umbels numerous, panicu- 

 late ; invol. and involucels of about 3, short, subulate leaves. Banks of the St. 

 Lawrence. Michx. Topsfield and Scituate, Mass. Oakes. Russel. S. States, 

 rare. Plant 3 6f high. Leaflets 23' long, lateral ones trapeziform. Umbels 

 on long, verticillate peduncles, terminal one abortive. ^ ! "* 



18. CONIOSELINUM. Fisch. 



Name compounded of Conium and Selinwm. 



Calyx teeth obsolete ; petals obovate, with an inflected point ; fruit 

 compressed on the back ; carpels with 5 winged ribs, lateral ones 

 marginal and much the broadest ; ' intervals with 1 3 vittso, commis- 

 sure with 4 8. (D Smooth. St. hollow. Lvs. on very large, inflated 

 petioles. Invol.' various. Involucels 5 7 -leaved. 



C. 1 CANADENSE. Torr. & Gray. (Selinum. Michx. Cnidium. Spr.] 

 La>s. ternately divided, divisions bipinnate, with oblong-linear lobes ; invol. 

 0, or 2 3-leaved ; fr. oblong-oval ; vitt-te solitary in the dorsal intervals, 2 3 in 

 the lateral. In wet woods, Maine to Wisconsin ! but not common. Stem 3 5f 

 high. Leaves much compounded, the ultimate segments pinnatifid with linear- 

 oblong lobes. Umbels compound. Petals white, spreading. Styles slender, 

 diverging. Fruit about 2" long. Aug. Sept. 



19. FCENICULUM. Adans. 



Lat. diminutive offoznum, hay ; from the resemblance of its odor. 



Calyx margin obsolete ; petals revolute, with a broad, retuse apex ; 

 fruit elliptic-oblong, laterally subcompressed ; carpels with 5 obtuse 

 ribs, marginal ones a little broader ; intervals with single vittse, com- 

 missure with 2. Umbels perfect, with no invol. or involucels. 



F. VULGARE. Gaert. (Anethum. Willd.) Fennel. Lvs. biternately dissect- 

 ed, segments linear-subulate, elongated; rays oj the umbel numerous, unequal, 

 spreading; carpels turgid, ovate-oblong. Native of England, &c. Cultivated 

 in gardens. Stem 3 -5f high, terete, branched. Leaves large and smooth, 

 finely cleft into numerous, very narrow segments. Flowers yellow. Jl. The 

 seeds are warmly aromatic. 



20. ARCHANGELICA. Hoffm. 

 So named for its preeminence in size and virtues among the Umbelliferce. 



Calyx teeth short ; petals equal, entire, lanceolate, acuminate, with 

 the point inflexed ; fruit dorsally compressed, with 3 carinate, thick 

 ribs upon each carpel, and 2 marginal ones' dilated into membrana- 

 ceous wings ; vittse very numerous. % Umbels perfect. Involucels 

 many-leaved. 



1. A. ATROPURPUREA. Hoffm. (Angelica triquinata. MX.} Angelica. 



St. dark purple, furrowed ; petioles 3-parted, the divisions quinate ; Ifts. in 

 cisely toothed, odd leaflet of the terminal divisions rhomboidal, sessile, the 

 others decursive. Among the largest of the umbelliferae, well known for its aro- 

 matic properties, common in fields and meadows, Northern and Western States. 

 Stem 4 6f high, 1 2' in thickness, smooth, hollow, glaucous. Petioles large, 

 inflated, channeled on the upper side, with inflated stipules at base. Leaflets 

 cut-serrate, the terminal one sometimes 3-lobed, the lateral ones of the upper di- 

 vision decurrent. Umbels 3, terminal, spherical, 68' diam. without the in- 

 volucre ; umbellets on angular stalks and with involucels of subulate bracts 

 longer than the rays. Flowers greenish white. 



2. A. HIRSUTA. Torr. &Gray. (Angelica. Muhl.') 



St. striate, the summit with the umbels tomentose-hirsute ; Ivs. bipinnate- 



