'1 



360 



SYNGENESIA SUPERFLUA. 



tifloris; involucri; squa 



mis, lanceolatis 



? 



laxis, 



discum subaequantibus 



I 



brous, branches many 

 flowered; scales of the 

 involucrum lanceolate, 

 loose, as long as the 

 disk. 



Sp. pi. 3. p. 2046. Pursh, 2. p. 553. 



. Stem two to five kei high, glabrous, branching profusely. Ldwer leaves 

 two to three inches long, semiamplexicaule, glabrous, the upper narrow 

 nearly entire. Flowers numerous, in racemose panicles. Scales of the 

 involucrum linear-lanceolate, loosely imbricate. Florets of the ray about 

 thirty, nearly linear, pale purplej of the disk yellow. Seeds pubescent.- 



Grows in damp rich soils. 



Flowers October — September. 



' r 



33. Amplexicaulis. 



A. foliis ovato-ob- | Leaves ovate, ob 



longis, acutis, amplex- long, acute, amj^exi 



icaulibus, cordatis, ser- caule, cordate, serrate; 



ratisj caule paniculate, stem paniculate, gla- 



glabro; involucri squa- brous; scales of the in- 



lanceolatis, arete volucrum lanceolate, 



mis 



imbricatis. 



closely imbricate. 



Sp. pi. 3. p. 2046. Pursh, 2. p. 552. Nutt. 2. p. 153. 



Stem erect, two to tliiee feet high, glabrous, sparingly branched towards 

 the summit. Leaves oblong lanceolate, the lower attenuate, semiamplexi- 

 caule, the upper more cordate, all glabrous and slightly serrate. Flowers 

 middle sized, in a terminal panicle. Scales of the involucrum linear-lanceo- 

 late, thick, very acute, glabrous. Florets of the ray (sixteen to twenty) 

 narrow, purple; of the disk yellow. Seed nearly glabrous. 



Grows in dry soils moderately fertile. 



Flowers September— October. 



