138 Tennessee Flora. 



TRACHELOSPERMUM Lemaire. 



Trachelospermum difforme (^W'alt.) A. Gray. Forsteronia 

 dififormis A. DC. Haywood County, W. Term. S. M. Bain. 



ASCLEPIADACE^ Lindl. 

 ASCLEPIAS L. 



Asclepias tuberosa L. Butterfly weed. Pleuresy root. 

 Fields and pastures. O. S. . June, July. M. 



A. purpurascens L. Purple milk weed. Edges of woods 

 and fields. ( ). S. June, July. 



A. incarnata L. Swamp milk weed. Swamps. O. S. 

 June, July. 



A. incarnata L. Var. longifolia Gray. Swamps along Cum- 

 berland River. M. 



A. obtusifolia ^lichx. Ocoee District. Rugby. Mrs. Per- 

 cival. June, July. 



A. exaltata (L.) ]yliihl. A. phytolaccoidea Pursh. Mts. of 

 E. Tenn. July. 



A, variegata L. White milk weed. Dry uplands, Nash- 

 ville. E. Tenn. June, July. 



A. quadrifolia Jacq. Oak barrens of M. Tenn. June, July. 



A. Syriaca L. Silk weed. A. Cornuti Decaisne. O. S. 

 July. M. 



A. perennis Walt. Bottoms, W. Tenn., at Henderson. S. 

 M. Bain. May-August. 



A. verticillata L. Whorled milk weed. Frequent in the 

 cedar glades. July. 



ASCLEPIODORA A. Gray. 



Asclepiodora viridis (Walt.) A. Gray. Cedar glades. In 

 dry, open places. May-July. 



ACERATES Ell. 



Acerates viridiflora f Raf.) Eaton. Cedar glades, Lavergne. 

 June, July. 



A, longifolia Ell. A. Floridana Hitch. Barrens at Tulla- 

 homa. July, August. 



AMPELANUS Raf. (Britton Enslenia Nutt.) 

 Ampelanus albidus Nutt. Britton Enslenia albida Nutt. 

 Sand vine. Thickets and along river banks. O. S. July. 



VINCETOXICUM Walter. (Gonolobus Michx.) 



Vincetoxicum gonocarpon Walt. Gonolobus laevis var. mac- 

 rophyllus A. Gray. G. macrophyllus Michx. O. S. July. 



