80 TENNESSEE FLORA. 



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



(\ tonieutosa Niitt. More prevailing than the other, espe- 

 cially ill ^Middle Tenn. April-May. 



r. porciua Nutt. Barrens and gravelly ridges. April-May. 



('. ainara Nutt. Low grounds, Nashville, along Cumberland 

 river. April-May. 



CUPULIFER^. 



Unercus alba L. O. S. April. 



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



U. 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. Prinus L. Hills and mountains of East and Middle Tenn. 

 April. 



Q. Miihlenber^ii Engelm. Common in Middle Tenn. April. 



U. coccinea Wanger. O. S. April-May. 



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



Q. I'libra L. O. S. April-May. 



Q. falcata Michx. O. S. April. 



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



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



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



(|. iinbricaria Michx. Barrens and glades. April-May. 



U. Pliellos 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.pumilaM.\c\\x. Common in East Tenn. June. 

 Fagus ferruginea Ait. O. S. May. 



