168 Tennessee Flora, 



G. uliginosum L. Bogs on Cumberland Mts. July-Sep- 

 tember. 



G. purpureum L. Sandy soils. O. S. May-September. 



INULA L. 



Inula Helenium L. Elecampane. Naturalized from Eu- 

 rope. Sweetwater. Loudon County, E. Tenn. July. M. 



POLYMNIA L. 



Polymnia Uvedalia L. Leaf cup. Yellow bear's foot. O. 

 S. July, August. M. 



P. Canadensis L. Ravines in the Cumberland and Alle- 

 ghany Mts. June-September. 



P. Canadensis radiata A. Gray. With large three-dentate, 

 shining Avhite ligules. Plant not over 2 feet high. Ought to 

 rank as a species. Fosterville, in the cedar glades. June, 

 July. 



SILPHIUM L. 



Silphium perfoliatum L. Cup plant. Brown's Creek, near 

 Nashville. July-September. M. 



S. integrifolium Michx. Rosin weed. Charlotte Pike, near 

 Nashville. July. 



S. trifoliatum L. Whorled rosin weed. O. S. July, Au- 

 gust. 



S. Asteriscus L. Craggie Hope. Cheatham County. Par- 

 adise Ridge. Knoxville. 



S. Asteriscus var. liBvicaulis DC. Tulahoma. June, July. 



S. laciniatum L. Compass plant. E. Tenn. July-Septem- 

 ber. M. 



*S. brachiatum Gattinger. Foot of mountains at Cowan. 



S. scaberrimum Ell. Barrens at Tullahoma. July. 



S, terebinthinaceum Jacq. Prairie dock. Lavergne. June, 



S. terebinthinaceum var. pinnatifidum Gray. Same range. 



S. compositum Michx. Western slopes of Chilhowee Mts. 

 and in tlic hills on Chestua Creek. E. Tenn. July, August. 



S. rumicifolium J. K. Small. Knoxville. Prof. Ruth. July- 

 September. 



•*S. brachiatum Gattinger. Stem, 3 to 5 feet liigh and very slen- 

 der: bracliiate branches, smooth, glabrous, glaucous; leaves, somewhat 

 ^hispidulous-scabrous, thin; cauline, hastate or deltoid-lanceolate, 4 to 8 

 lines long, slightly dentate on rarely long and barely margined or naked 

 petioles; those of the branches, small and very distant, sessile, ovate- 

 lanceolate, entire; uppermost reduced to small bracts, heads small, half 

 inch or so high, on long and slender peduncles; involucral bracts, 

 ovate; rays, 6-8; akenes, ovate-orbicular, narrowly winged, with barely 

 emarginate summit. (Bot. Gazette, IX., 192; coll., 1867.) 



