34 The Flora of Franklin County. — Ftogens. 



CuscuTA, Tourn. 



C. Gronovii, Willd. Dodder. Common on low grounds. 



SOLANACE^. (Nightshade Family). 

 SoLANUM, Tourn. 



S. nigrum, L. Common Nightshade. 



S. Carolinense, L. Horse Nettle. Common. 

 Physalis, L. 



P. pubescens, L. 



P. Virginica, Mill. (P. viscosa, L.) 



P. lanceolata. (P. Pennsylvanira.) 

 Nicandra, Adams. 



N. physaloides, Gaertn. Apple of Peru. Frequent. 

 Datura, L. 



D. Stramonium, L. Thorn Apple. Jamestown-weed. 



D. Tatula, h. Purple Thorn Apple. More abundant than the 



other species. 



GENTIANACE.'E. (Gentian Family). 

 Sabbatia, Adams. 



S. angularis, Pursh. Not common. 

 Frasera, Walt. 



F. Carolinensis, Walt. American Col umbo. Common on dry hilly 



points. 

 Gentiana, L. 



G. quinqueflora, Lam. Five Flowered Gentian. Not common. 

 G. Andrewsii, Griseb. Closed Gentian. Not common. 



APOCYNACE^:. (Dogbane Family). 

 Apocynum, Tourn. 



A. cannabinum, L. Indian Hemp. Common. 

 A. cannabinum, L. var. hypercifolium, Gr. 



ASCLEPIADACE.^. (Milkweed Family). 



ASCLEPIAS, L. 



A. Cornuti, Descainse. Common Milkweed. Silkweed. 



A. phytolaccoides, Pursh. Poke Milkweed. 



A. purpurascens, L. Purple Milkweed. Fre(|uent. 



A. quadrifolia, Jacq. Four-leaved Milkweed. Common in the 



woods. 

 A. incarnata, L. Swamp Milkweed. Common. 

 A. tuberosa, T>. Butterflyweed. Pleurisy-root. Common. 

 Enselina, Nutt. 



E. albida, Nutt. Common along river banks. 



