> 



SYNGENESIA SUPERFLUA, 



321 



involucri squamis sub 

 ulato muciooatis, flos 

 culis brevioribus. 



less; scales of the invo- 

 iucriim subulate, mu- 

 cronate, shorter than 

 the florets. 



Mich. 2. p. 126. Pursh, 2. p. 523. Nutt. 2. p. 145. 

 Baccharis Fcetida. Walt, p, 202. Sp. pi. 3. p. 1918. 



1 



Roof annual? Ste7n erect, three to live feet high^ brandling towards the 



Leaves alternate, sessile, hui^e 



^ branches 

 lanceolate, acute at each end, serrate, pubescent- Flowers in axillary and 

 terminal corymbs, female florets in the circumference of each capitulum, 

 .^ery numerous, hermaphrodite in the centre few^ rarely exceeding five, all 

 purple* J«i?o/tfcrM»i many leavedj (sixteen to twenty,) imbricate; leaflets 

 ovate, acute, pubescent, with the margins membranaceous. Female florets 

 with the corolla slender, tubular, minutely five-toothed- Stamens none. 

 Style longer than the corolla, two-cleft ; germ oblong ; seed oblong, cylin- 

 drical, pubescent. Pappus hairy. Hermaphiodite florets funnel shaped, 

 with th-e border five-cleft, somewhat expanding. Stamens longer than the 

 corolla, purple. 



two-cleft. 



Germ very short, thick. Style as long as the stamens. 



Seed probably abortive. Receptacle naked, slightly convex, 

 dotted . 



This species, and those that are strictly allied to it, are remarkable for 

 the strong and to most persons disagreeable aroma, which is emitted from 

 every part of the plant when bruised. 



Grows very abundantly in ditches and damp places, both in brackisi 



i 



1 



and in fresh soils. 

 Flowers August 



r 



September. 



-il 



2. Camphorata. 



C. herb ace a, subpu- 

 beseens; foliis petiola- 

 tis, ovato-lanceolatis, a- 

 cutissimis, subrepando 

 denticulatis 

 terminalibus et axilla- 



5 



corymb is 



Herbaceous, slightly 

 pubescent; leaves on 

 petioles, ovate-lanceo- 

 late, very acute, denti- 

 culate; corymbs termi 

 nal and axillary, short 



er 



than 



the leaves 



fibus, folio brevioribus; 



involucri squamis acu- I scales of the involu- 



tis, flosculos subaequan- crum acute, as long as 



tibus. 



the florets. 



**. 



145. 



Pursh, 2. p. 523. Nutt. 2. p. 



Erigcroii Camphoratum, Sp. pi. 3. p. i960. 



VOL. II. 



s2 



