Tennessee Flora. 91 



S. Careyana A. Gray. Roane Mt. Chickering. William 

 Canby. July, August. 



THEROFON Raf. (Boykinia Nutt.) 



Therofon aconitifolium (Nutt.) Millsp. Boykinia aconiti- 

 folia Nutt. Throughout the Alleghanies, Ocoee and Doe Riv- 

 ers, and in the Cumberland Mts. Piney Falls. Mrs. Lydia 

 Bennett. July. 



TIARELLA L. 



Tiarella cordifolia L. False mitrewqrt. E. Tenn. April, 

 May. 



HEUCHERA L, 



Heuchera Rugelii Shuttlw. Piney Falls. Cumberland Mts. 

 Mrs. Lydia Bennett. July-September. 



H. villosa Michx. Limestone rocks. M. Tenn. Frequent. 

 June-September. 



H. Americana L. Aluip root. Vicinity of Nashville. May. 



H. pubescens Pursh. Sewanee. Mts. of E. Tenn. May, 

 June. 



H. macrorhiza Small, n. sp. Frequent on limestone bluflfs 

 along Cumberland River and all the wiy along Louisville and 

 Nashville Railroad to Pulaski. June, July. 



MITELLA L. 



Mitella diphylla L. Mitrewort. Cumberland and Alle- 

 ghany Mts. April, May. 



CHRYSOSPLENIUM L. 



Chrysospleniuni Americanum Schwein. Irrigated places in 

 the Frog Mts. March- June. 



PARNASSIA L. 



Parnassia Caroliniana Michx. Cumberland and Alleghany 

 Mts. June-August. 



P. asarifolia Vent. Big Frog Mts., E. Tenn. July-Septem- 

 ber. 



HYDRANGEA L. 



Hydrangea arborescens L. Wild hydrangea. Highlands of 

 M. Tenn. and river bluffs. June, July. 



H. arborescens Kanawhana Millsp. H. arborescens var. 

 cordata Gray. H. cinera J. K. Small. Bluffs on Ocoee River, 

 above Parksville. June-September. 



H. radiata Walt. Cataract near TuUahoma, and from there 

 on up and through the Cumberland Mts. 



H. quercifolia Bartram. Tullahoma. Barnes. 



