142 tENTANDRiA MONOGYNiA. Nicotiana. 



from it is excellent. The most delicate tobacco is pre- 

 pared by the Indians from the dried flowers. 



182. VERB ASCUM. Gen. pi. 331. 



Thapsus. 1. V. foliis decunentibus utrinque tomentosis,. caule sim-* 



plici. IVilld. sp. pLl. p. W0\. 

 Icon. Engl. lot. 54Q. Fl.da?i.63l. 

 On road sides and in neglected fields ; common : proba- 

 bly introduced. ^ . Jtdy, Aug. v. v. A singular 

 circumstance frequently struck my attention, respect- 

 ing this plant, as it appears in great abundance in 

 fields newly cleared and burnt in the most remote 

 part of the country, where sometimes not a plant of 

 it is found within the compass of more than a hun- 

 dred miles. How the seed is brought there I cannot 

 imagine. 



Lvchnilis ^' ^- ^°^''* ovatis acutis crenatis subtus tomentoso-incanis, 



" * spicislaxislateralibusetterrainalibus. — Witid.sp.pl.l. 



p. 1003. 

 Icon. FL.dan. 586. 



On the banks of the Delaware near Philadelphia. S- 

 June, July. v. v. Flowers yellow, as all the rest 

 here mentioned, smaller than the former species. 

 Blattaria. 3. V. foliis amplexicaulibus obovato-obiongis serratis gla- 

 bris, pedicellis solitariis unifloris. — IVitld. sp. pi. 1. 

 p. 1005. 

 Icon. Engl. lot. 393. 



In fields and on road sides ; frequent. ^ . Junft, July. 

 v.v. Flowers yellow. There frequently occurs a va- 

 riety with white flowers, which are larger and sweet 

 scented. 

 Claytonu 4. V. foliis amplexicaulibus sublanceolato-oblongis : cauli- 



nis inciso-crenatis : crenis crenulatis, pedicellis solita- 

 riis unifloris. — Mich. fl. umer. 1. p. 148. 

 In woods and fields : Virginia to Carolina. S • June, 

 July. V. V. Flowers yellow, and larger than the third 

 species. 



183. CALYSTEGIA. Brownji. nov. holl. p. 483, 



Sepium. 1. C, volubilis J foliis sagittatis acutissimis : postice obtusis 



truncatisve integris, bracteis acutis calyce longioribus 

 dimidio corollae brevioribus, pedunculo angulato pe* 

 tiolum superante. Brown I. c. 



