28 



Ipomoea acetosaefolia R. & S. 



(I. littoralis (L.) Bois.) 



Common on the sandy beach. Small gives range as 

 South Carolina to Florida and Texas. 

 Ipomoea sagittata Cav. 



(I. speciosa Walt.) 



This species is very abundant in the open swamps near 

 New Orleans. Occurs over the State. 

 Ipomoea commutata R. & S. 



(I. Caroliniana Pursh.) 



Over the State. 



Ipomoea purpura Lam. 



Naturalized in cultivated ground over the State. 

 Dichondra repens Forst. 



(D, Caroliniensis Michx.) 

 Over the whole State. 

 Cuscuta Gronovii Willd. 



Very abundant on Iva frutescens. Found on asters and 

 golden rods and other compositae and shrubs over the State. 

 •Cuscuta indecora Choisy. 



Growing on Lycium Carolinanum and other low shrubs 

 and herbs along the beach. First record from Louisiana. 

 ■Cuscuta compacta Juss. 



Not common. Growing in similar localities to previous 

 species. 

 Cuscuta arvensis Beyrich. 



On herbs and low shrubs. Also collected by Langlois, 

 Hale, Joor. 



BORRAGINACEAE. 



lleliotropium Curassavicum L. 



Very abundant along the beach. 

 Ileliotropium Indicum L. 



Common as a weed over the State. Supposed to be nat- 

 uralized from India. 



