COMPOSITE. 195 



2. B. asteroides VHerit: leaves entire ; flowers on long peduncles ; 

 seeds oval, smooth, nearly awnless. Chrysanthemum carolinianum 

 Walt. 



HAB. Swamps. N. S. to Car. W. to 111. Aug. It- Stem 

 1 2 feet high. Leaves lanceolate. Rays flesh coloured. 



SUBORDER IV. EUPATORINEJE. 

 28. KUHNIA. Linn. 



Involucre imbricate, cylindric. Receptacle naked. Pap 

 pus plumose. Seed pubescent, many-striate. 



Syngenesia. JEquatis* 



1. K. eupatorioides Linn. : smooth ; leaves petiolate, broad-lanceo- 

 late, serrate ; corymb terminal, few-flowered, crowded. 



HAB. Shady woods. Penn. to Virg. Aug., Sept. If. Stem 

 2 3 feet high. Flowers white. Resembles an Eupatorium. 



2. K. critonia Linn. : pubescent ; leaves narrow-lanceolate or linear, 

 petioled, punctate and glandular beneath ; panicle terminal, divaricate. 

 Critonia kuknia Mich. 



, HAB. Mountains. Penn. and Virg. Aug., Sept. If. Flowers 

 pale yellow. Seed striate. Pappus of H24 rays. 



2&. EUPATORIUM. Linn. 



Involucre imbricate, oblong. Style long, deeply cleft. Re- 

 ceptacle naked. Pappus hairy, generally scabrous. Acines 

 smooth, 5-striate or angled. Syngenesia. JEqualis. 



* Involucre 3 ^-flowered. 



1. E. hyssopi/olium Linn. : stem erect ; lowest leaves opposite, lan- 

 ceolate-linear, slightly toothed ; corymb nearly fastigiate j style much 

 larger than the corol.. 



HAB. Pine woods. N. J. to Car. Aug., Sept. If. Stem 1 2 

 feet high. Leaves small, punctate. Flowers in a terminal co- 

 rymb, white, sprinkled with glandular dots. 



2. E. linearifolium Walt. : stem somewhat procumbent, villous to- 

 wards the summit ; stem leaves* opposite, lanceolate-linear, rarely 

 toothed, sometimes clustered ; style as long as the corol. 



HAB. Sandy fields. N. J. to Car. Aug. Nov. If. Stem gen- 

 erally procumbent, 1 2 feet long, almost viscidly-pubescent. 

 Floicers in an irregular corymb, white. This species seems to 

 have been confounded with the preceding, by both Walter and 

 Michaux. I have adopted the characters given by Elliott. 



3. E. lanceolatum Willd. : leaves sessile, distinct, oblong-lanceolate, 

 scabrous, deeply serrate at base ; scales of the involucre similar co- 

 loured. 



HAB. Dry woods. Penn. to Virg. Aug. Nov. If. Resem- 

 bles the preceding. 



