80 TENNESSEE FLORA. 



C. sulcata. Big trees in rich loam O. S. April-May. 



('. tomentosa Nutt. More prevailing than the other, espe- 

 cially in Middle Tenn. April-May. 



C. porcina Nutt. Barrens and gravelly ridges. April-May. 



C. amara Nutt. Low grounds, Nashville, along Cumberland 

 river. April-May. 



CUPULIFER^. 



Querciis alba L. O. S. April. 



Q. stellata Wang. (Q. obtusiloba Michx.) O. S. April. 



Q. lyrata Walt. O. S. Frequent in vicinity of Nashville. 

 April. 



Q. macrocarpa Michx. Low grounds. Nashville. April. 



Q. bicolor Willd. Low grounds. Nashville and West Tenn. 

 April. 



Q. Michauxii Nutt. O. S. Rocky hillsides. April-May. 



Q. Pl'inus L. Hills and mountains of East and Middle Tenn. 

 April. 



Q. Miililenbergii Engelm. Common in Middle Tenn. April. 



Q. cocciiiea Wanger. O. S. April-May. 



Q. tinctoria Bartr. O. S. April-May. 



Q. rubra L. O. S. April-May. 



Q. falcata Michx. O. S. April. 



Q. palustris Du Roi. Low, wet lands. O. S. May. 



Q. ilicifolia Wanger. Scattering. O. S. April-May. 



Q. nigra L. O. S. April-May. 



Q. imbricaria Michx. Barrens and glades. April-May. 



Q. Phellos L. Low, wet ground in the barrens. April-May. 



Q. aquatica Castesby. Mountains of East Tenn. ; along 

 creeks and barrens of Middle Tenn. April-May. 



Our oaks are often difficult to determine. Many transitions 

 or hybrid forms occur, 



Castanea vulgaris Lam., var. Americana DC. O. S. June. 



G. pumila Michx. Common in East Tenn. June. 



Fagus ferruginea Ait. O. S. May. 



