UMBELLIFERAE 107 



1. C. procumbens, Lam. Stems slender, spreading; segments 

 of the leaflets lance-oblong, rather obtuse; umbels opposite the 

 leaves, few-rayed. 

 PROCUMBENT CHAEROPHYLLUM. Wild Chervil. 



Annual; somewhat hairy, especially when young. Stem 6 to 12 or 15 inches 

 long, mostly oblique or procumbent, branching. Leaves bipinnately decompound ; 

 segments more or less bristiy-ciliate. Umbels on peduncles 1 to 3 inches long ; rays 

 about 3, sometimes fewer; fruit dark brown. 

 Hab. Moist, shaded grounds; Brandy wine: not common. Fl April. Fr. June. 



167. OSMORRHrZA, Rafin. 

 [Gr. Osme, odor, and rhiza, a root ; from its sweet anisate root.] 

 Fruit linear-oblanceolate, angular, tapering at base, contracted at 

 the sides; styles persistent; carpels with 5 acute upward-bristly 

 ribs,- vittae none. Perennials: roots thick, and aromatic; leaves 

 biternately dissected; involucre and involucels few-leaved; umbels 

 about 4-rayed; flowers white. 



1. O. longistylis, DC. Root strongly anisate; stem rather 

 slender, hoary-pubescent, often purple; leaflets oblong-ovate, in- 

 cised-serrate ; styles filiform, as long as the ovary. 

 LONG-STYLED OSMORRHIZA. Sweet Cicely. 



Stem 2 to 3 feet high, solid with pith, branching. Radical leaves 1 or 2, on pu- 

 bescent purple petioles 9 to 12 inches in length. Umbels mostly in pairs, or termi- 

 nating the forked extremities of the stem and branches, sometimes axillary, on 

 peduncles 2 or 3 to 6 inches long; fruit about half an inch long, tapering to a 

 bristly stipe, at base. 

 Hab. P.ich, moist, rocky woods : frequent. Fl. May. Fr. Aug. 



2. O. brevitylis, DC. Stem pale green, smoothish below; 

 leaflets pinnatifidly incised; styles conical, not half as long as the 

 ovary. 



SHORT-STYLED OSMORRHFZA. 



Hoot of a sweetish, mawkish taste, something like that of Aralia nudicaulis, L. 

 Stem about 2 feet high, mostly fistular, branching. Leaves and umbels nearly as 

 in the preceding. 

 Hab. Moist, rich grounds : not common. Fl. May. Fr. Aug. 



168. CO V ]VIUTH, L, 



[From Koneion, the Greek name of the Hemlock.] 



Fruit ovate, flattened at the sides ; stylopodium dilated at base ; car- 

 pels with 5 equal prominent wavy-crenulate ribs, the inner face 

 with a deep narrow groove ; vittae none. Biennials : leaves large, 

 tripinnately decompound ; involucre few-leaved ; involucels halved or 

 unilateral, about 3-leaved; umbels spreading, many-rayed; flowers 

 white. 



1. C. maculatum, L. Smooth; stem rather stout, terete, spotted; 

 leaflets lanceolate, pinnatifid; involucels shorter than the umbel- 

 lets. 

 SPOTTED CONIUM. Poison Hemlock. 



Plant bluish-green and sometimes glaucous. Hoot fusiform or often forked, 

 fleshy and whitish. Stem 2 to 4 (sometimes 6 or 8) feet high, branched, fistular, 

 striate with green and yellow, often spotted with dark purple. Fruit somewhat 



