SPECIES AND VARIETIES. 249 



rubbed; lowest leaves once or twice pinnate, with broadly, 

 ovate or cuneate, deeply cut segments, the others more divided, 

 with linear segments ; umbels terminal, of 5-8 rays, without 

 general involucre, and only a few small slender bracts to the 

 partial ones; flowers white, the outer petals larger. A weed 

 of cultivation. Fl. June. 



(125) Conium. HEMLOCK. 



C. maculatum : annual or biennial ; stem erect, branching, 

 3-5 feet high, smooth, glaucous, spotted, emitting a nauseous 

 smell when bruised ; leaves large, much divided into numerous 

 small ovate or lanceolate deeply-cut segments; umbels ter- 

 minal, of 10-15 rays ; bracts short, lanceolate, those of the 

 general involucre variable in number, those of the partial ones 

 almost always three, turned to the outside of the umbel. 

 Hedges and borders of fields, etc. Fl. June, July. 



(126) Smyrnium. ALEXANDERS. 



S. Olusatrum : annual or biennial ; stems coarse, erect, 2-4 

 feet high, glabrous ; lower leaves twice or thrice, upper ones 

 once ternate, the segments broadly ovate, coarsely toothed or 

 three-lobed ; umbels terminal, of 8-12 rays ; flowers greenish 

 yellow, crowded in the partial umbels ; fruits black, aromatic. 

 Meadows and waste places. Fl. May, June. 



(127) Scandix. SHEPHERD'S-NEEDLE. 



S. Pecten : annual ; stem branching, erect, or spreading, 

 i-1 foot high, hairy; leaves twice or thrice pinnate, with 

 short segments cut into linear lobes ; umbels terminal of 2-3 

 rays, without general involucres ; partial involucres of several 

 lanceolate bracts, often 2-3 lobed at the top ; flowers small 



