SYNGENESIA NECESSARIA. 



465 



Integrifolium. Mich. 



S. caule 



tetragono 



9 



aspero; foJiis oppositis, 

 sessiiibus, obloiieis, in- 



Stem 



rou 



9 

 9 



y 



four-angled 

 h; leaves opposite 

 ^ sessile, oblong, entire 



legerrimis, scabrTs; flo- scabrous; flowers few 



ribus panels, breviter [ on short peduncles, 

 pedunculatis, 



Mich. 2. p. 146. Spl. pi. 3. p. 2333. Pursh, 2. p. 578. Nutt. 2. p. 



183. 



T 



r 



Stem square^ rough. Leaves all uniform, opposite, sessile, erect, oblong, 

 oval, very scabrous on the upper surface. Flowers (eWy on short peduncles. 

 JMich. From the mountains of Carolina Dr. Macbride brought specimens 

 nearly allied to this species, differing in a (ew particulars. Stem 



terete, glabrous, the peduncles slightly angled. Leaves oblong, ovate or 

 oval, acute, entire, scabrous on both surfaces, on short somewhat connate 

 petioles. Flowers not numerous. Scales of the involucrum oblong, ovate, 

 glabrous, slightly fringed, all nearly of one length. Florets of the ray four- 

 teen, rather more than an inch long, of a very brilliant yellow. 



The original S. Integrifoliuna of Mich, was collected in tlie state of Illi- 

 nois and may be distinct. 



Flowers August — September. 



* 



.J 



8. L.EV1GATUM. Pursh. 



S, caule simplici, te- 

 ono, sulcato, gla- 



foliis 



gled 



Stem simple 



9 



4-an 



9 



furrowed, 



oppositis brous; leaves opposite. 



s6ssilibus, ovatis, acu- sessile, ovate, acumi- 

 minatis, tenuissime ser- I nate, very shghtly ser- 



ratis, basi subcordatis 

 titrinque glabris; 



9 



rate 



9 



somewhat 



cor 



in 



date at base, glabrous; 

 vohicri squamis ovatis, I scales of the involu- 



ciliatis. 



crura ovate, ciliate. 



9 



Pursli, 2. p. 578. Nutt. 2. p. 183. 



Stem about two feet bigli. Flowers in a compact corj-mb. Tiirsh- 



is 



The plant I am about to describe agrees in so many respects with this 

 ecies, that it probably belongs to it. For the difffcrencps ir will perhap; 



be easy to account. 



species 



VOL. II 



n5 



