136 PENTANDRIA.— DIGYNIA. 



HAB. Wet meadows. June. U- Stem 2—3 ft, 



high ; leav. slightly hairy ; partial petiol. elong. . 

 fl. wh. 

 i. M. canadensis : leaves ternate, smooth ; leaflet* 

 rhomboid-ovate, acute, incisely toothed, acutely 

 serrate ; partial involucra minute, subulate ; fruit 

 oblong, very smooth. 

 HAB. Rocky woods. June. 11 . Stern 1|— -2 ft, 

 high, erect, smooth ; umb. num. ; fr. 3 lin. long, 



210. SIUM. Water-parsnip. Umhelliferai. 



1. S. latifolium: stem angular; submerged leaves bi 

 pinnatifid ; upper ones pinnate ; leaflets oblong- 

 lanceolate, unequal at the base, acutely serrate ; 

 umbels terminal - 

 HAB. Shady swamps. July. U • Root creep. ; 

 stem 1-ang., 18 in. high; leafl. 4 pairs ; ft. white. 

 2. S. lineare : stem angular and sulcate ; leaves pin- 

 nate ; leaflets 4 — 5 pairs, linear-Ian* utely 

 and finely serrate ; involucra many-leaved, linear : 

 umbels terminal. 

 HAB. Swamps. Aug. 1£. Stem l-ang. 9 2— 3 ft. 

 high ; leafl. long and narrow ; fl. white ; cat. obsol. 

 » 



211. CONIUM. Hemlock Umbelliferce. 



C. maculatum : stem very smooth, spotted ; leaves 

 tripinnate ; leaflets lanceolate, pinnatifid ; segments 

 lanceolate, nearly entire. 



HAB. Road sides, &c. July. $. Stem 2— 4 ft. 

 high; leav. smooth and shin ;fl. white. Poisonous! 



212. LIGUSTICUM. Lovage. Umhelliferai. 



1. L. scoticum : leaves biternate ; leaflets subrhombic- 



ovate, coarsely serrate ; involucrum linear-lanceo- 

 late. 

 HAB. Salt marshes. July. U. Stem \S in. high 7 

 smooth ; leav. retic. ; umb. pedunc. ; fl. wh. 



2, L. actceifolium : leaves biternate ; leaflets oval, 



equally toothed ; partial involucra setaceous ; fruit 

 ©blong-oval, leaves somewhat win«;s. 

 HAB. New-York. V-. Stem very tall, smooth; 

 petioles long; umb. num., subvert. ) fl. wh. 



