IOWA ACADEMY OF SCIENCES. 233 



ACERACE^. 



Acer L. 



367. A. s((ccli(iriinnii L, (.1. (lasycarjnini Elirli.) Soft 

 Maple. Frequent on river banks, and very com- 

 mon in cultivation. 



36S. -1. uifjruiit Michx. (.4. saccharuium var. nigrum 

 Torr. and Gray.) Harder Sugar Maple. Com- 

 mon in woods, preferring dryer ground than the 

 preceding species. 



balsaminace^e. 



Impatiens Ij. 



369. /. hiilora Walt. (J. fulva Nutt.) Spotted Touch- 



me-not. Springy places in woods. 



370. /. anrea Muhl. (/. pallula Nutt.) Pale Touch- 



me-not. With the preceding, and more com- 

 mon. 



RHAMNACE^. 

 <JEAN0THUS L. 



371. C. aiuerircniHs L. New Jerse}^ Tea. A pretty 



shrub, frequent on dry prairies. 



VITACE.-E. 



ViTis L. Wild Grape. 



372. V. uulpina L. (T^ riparia Michx.) Very common 



in woods and artificial groves. 

 Parthenooissus Planch. 



373. P. (jiiinquefolia (L.) Planch. {Anipclopsis (pdiKjiie- 



folia Michx.) Virginia Creeper. Common in 

 woods, and also in cultivation. 



TILIACE^. 



TiLiA L. Basswood. 



374. T. ((mericana L, Common in low woods. The 



sweet scented flowers much frequented by bees. 



