Tennessee Flora. 169 



CHRYSOGONUM L. 



Chrysogonum Virginianum L. Ducktown, Polk County. 

 April-July. 



PARTHENIUM L. 



Parthenium integrifolium L. American fever few. Dry 

 grounds. O. S. July. 



HELIOPSIS L. 



Heliopsis helianthoides (L.) B. S. P. H. Isevis Pers. Ox 

 eye. Highlands of M. Tenn. and mountains of E. Tenri. Au- 

 gust, September. 



H. scabra Dunal. Paradise Ridge. Knoxville. July. 



ZINNIA L. 

 Zinnia pauciflora L. Escaped. Nashville. 



ECLIPTA L. 



Eclipta alba (L.) Hassk. E. procumbens Michx. Moist 

 ground ,along streams, and a weed in fields and gardens. Nat- 

 uralized from tropical America. July-October. 



TETRAGONOTHECA L. 



Tetragonotheca helianthoides L. Cave Spring, Roane 

 County. 



RUDBECKIA L. 



Rudbeckia triloba L. Cone flower. O. S. July-Septem- 

 ber. 



R. subtomentosa Pursh. Henderson, W. Tenn. S. M. 

 Bain. 



R. hirta L. Black-eyed Susan. Barrens. O. S. August, 

 September. 



R. Brittoni Small. Mts. of E. Tenn. Fide Illustrated Flora. 

 May-July. 



R. fulgida Ait. Dry woods and barrens. O. S. August- 

 October. 



R. spathulata Michx. Chilhowee Mts., E. Tenn. A. H. 

 Curtiss. September. 



R. speciosk Wend'eroth. Lavergne. . Hollow Rock. Au- 

 gust-October. 



R. laciniata L. Paradise Ridge. Mts. of E. Tenn. Wolf 

 Creek. ' Var. humilis Gray. Is a mountain form. July-Sep- 

 tember. M. 



R. bicolor Nutt. Open, dry barrens. Nashville. Bon Air. 

 September. 



