COMPOSITE. 175 



1. V, novtloracensis Willd. : leaves numerous, lanceolate, scabrous, 

 serrulate ; corymb fastigiate ; scales of the involucre filiform at the 

 summit. 



HAB. Wet grounds. Can. to Car. W. to Miss. Aug., Sept. 

 If. Stem 4 6 feet high, branching towards the top. Flowers 

 in a very large terminal corymb, purple. 



2. V. prealta Willd.: stem very tall, angular, densely ' pubescent ; 

 leaves numerous, lanceolate, acutely serrate, pubescent beneath ; 

 corymb fastigiate : scales of the involucre ovate, acute, unarmed. 



HAB. Meadows. N. S. to Car. Aug. Oct. Z. A very tall 

 rough looking plant. Flowers purple. 



16. LIATRIS. Linn. 



Involucre oblong, imbricate. Receptacle naked. Pappus 

 feathered, generally coloured. Acines pubescent, obconic. 



Syngenesia. JEqualis. 



1. L. spicata Willd. : leaves linear, entire, smooth, ciliate at base, 

 nerved and punctate ; flowers in spikes ; scales of the involucre linear, 

 obtuse. L. macrostachya Mich. Pursh. 



HAB. Meadows. Penn. to Car. Aug., Sept. If. Stem 36 

 fee^high. Flowers in a terminal spike, purple. Involucres 8 10- 

 flowered. 



2. L. pilosa Willd. : stem simple, pubescent ; leaves linear, hairy, 

 ciliate ; flowers in loose racemose heads ; scales of the involucre ob- 

 long, obtuse ; pedicels bracteate. 



HAB. Pine barrens. N. J. to Geor. Sept. Nov. U-Stem 



2 3 feet high, a little hairy. Leaves long and linear. Raceme 



long, leafy. Involucre with 1014 flowers. Flowers small, 

 bright purple. 



3. L. scariosa Willd. : stem erect, hairy ; leaves lanceolate, pubes- 

 cent, scabrous on the margin ; raceme long ; involucre 14-flowered ; 

 seales obovate, nearly glabrous, with the margins scarious ; the lower 

 ones expanding. 



HAB. Sandy woods. Penn. to Car. Aug. Oct. 2_f. Stem 

 3 4 feet high. Lower leaves very long. Flowers numerous, in a 

 terminal raceme, bright purple. A very variable species. See. 

 Ell. Sk. ii. 281. 



4. L. squarrosa Willd. :- stem simple, pubescent ; leaves very long, 

 linear* nerved, with the margins scabrous ; racemes few-flowered, 

 leafy ; upper scales of the involucre lanceolate, rigid and spreading ; 

 segments of the florets linear, villous internally. 



HAB. Sandy woods. Penn. to Flor. W. to Miss. Sept. Oct. 

 If. Stem 2 3 feet high. Flowers generally 4 5, in a terminal 

 raceme, bright purple. Involucre about 20-flowered. 



17. BACCHARIS. Linn. 

 Involucre imbricate, its scales ovate and somewhat coria- 



