290 LXVII. UMBELLIFERJE. ARCHANGELICA. 



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

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

 above. Fruit 4 5" long. Jl. 



2. L. ACTJEFOLIUM. Michx. (Thaspium. Nutt.) 



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 2 3' long, lateral ones trapeziform. Umbels 

 on long, verticillate peduncles, terminal one abortive. 



18. CONIOSELINUM. Fisch. 



Name compounded of Cmiwn and Selinum. 



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. CD Smooth. St. hollow. Lvs. on very large, inflated 

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



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

 Lvs. ternately divided, divisions bipinnate, with oblong-linear lobes ; invol. 

 0, or 2 3-leaved ; Jr. oblong-oval ; vitta 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 offasnum, 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 of 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 Umbelliferae. 



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 

 mani 



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 x 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. MuJd.} 



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



