STNGBNESIA NKCESSARIA. 



America. Retx. 1/ . 



Silphium. 



V. s. in Herl. Lam- 



12, 



In North 

 hert. 



S. caule tereti Icevi, foliis subquaterno-verticillatis lan- 

 ceolatis scabris subintegerrimis subsessilibus basi cilia- 

 tis, supcrioribus sparsis, panicula dichotoma. — IViHd. 

 sb. pi. 3. p. 2334. 



In Carolina and Georgia. Lyon. 1/. Aug. Sept, v. v. 

 Kesembles (he preceding ; but its purple smooth stem 

 distinguishes it at first sight. 



^n 



atropurpU' 

 reum. 



J3. S. caule petiolisque tomentosis, ramis unifloris, foliis tomentosum, 

 aUernis cordatis ovatis serratis petiolatis villosis, semi- 

 nibus muticis. — Herl'. Banks, /ms. 

 In Georgia, Bartram. % . v. s. in Herh. Banhs. 



14. S. foliis alternis petiolatis cordatis sinuatis, squamis caly- datum. 



cinis obtusis. Herh. Banks, mss. 

 In Carolina. '2/ . v. s, in Herb. Banks. 



15. S. foliis alternis ovato-lanceolatis cordatis serratis obiusi- reliadatum. 



usculis villosiusculis. Herb. Banks, mss. 

 In Florida. %. v. s. in Herh. Banks. 



6dl. POLYMNIA. Gen.pl. 1335. 



1. P. viscido-villosa J foliis denticulatis acuminatis, infeilo- canadensis. 



ribus pinnatilidis, superioribus trilobis integrisve. — 



Willd. sp. pi. 3. p. 2335. 

 Icon. Amoen. acad. 3. t. l.f.5. 

 In shady mountains: Canada to Virginia. % . June, 



July. V. V. Two or three feet high ; flov.-ers yellow j 



the whole plant has a strong balsamic scent. 



2. P. foliis oppositis trilobis acutis in petiolum decurrenti- Uoedalia. 



bus, lobis anguloso-sinuatis, radiis elongatis. — Willd. 



sp.pl. 3. p. 2335. 

 P. maculata. Cnv. ic. 3. t. 227. 

 Icon. Pluk. aim. t. 83. /. 3. Mcris. hist. 3. s. 6. t. 7. 



f. 55. Trew pict. suppl. 1 1 2. 

 In tlie mountains of Virginia and Carolina. "2/ . July — 



Sept, V. V. From four to eight feet high. 



662. CHRYSOGONUM. Gen.pl. 1337. 



1. C. pumllum, lanato-villosum ; foliis in petiolum angus. virginianuin, 

 tatis ovalibus dentatis. — JVilUi. sp. pi. 3. p. 233/. 

 Icon. Pluk. aim. t. 83. f. 4. iff t. 2 12./ 3. 

 On dry hills : Virginia and Carolina. 1/ . May, June, 

 V, V. Not above a span high j flowers yellow. 



