Tennessee Flora. 67 



CORYLUS L. 



Corylus Americana Walt. Hazelnut. From the mountains 

 tojthe Mississippi bottoms, in which it forms widespread 

 thickets. Match, April. Nuts ripe in July. 



C. rostrata Ait. Dense undergrowth in the Alleghanies. 

 April, May. Nuts ripe in August. 



EETULA L. 



Betula nigra L. Red birch. A slender tree lining water 

 courses. Frequent in W. Tenn. April, May. 



B. lenta L. Sweet birch. Black birch. Cumberland and 

 Alleghany Mts. April, May. M. 



B. lutea Mich. Gray birch. Summit of Thunderhead. May. 



ALNUS Gsertn. 



Alnus Alnobetula (Ehrh.) K. Koch. Mountain alder. Al- 

 nus viridis DC. Mts. of E. Tenn. May, June. 



A. rugosa (Du Rdi.) K. Koch. Smooth alder. In wet soil 

 or hillsides. O. S. March. M. 



FAGACEiB Drude. 



FAGUS L. 



Fagus Americana Sweet. F. ferruginea Ait. American 

 beech. O. S. Large forest tree,, attaining from 50 to 120 feet 

 in height. April, May. Fruiting in September, October. 



CASTANEA Adans. 



Castanea dentata (Marsh.) Barkl. C. vesca var. Ameri- 

 cana Michx. American chestnut. A large forest tree pre- 

 ferring siliceous soil, attaining from 80 to 100 feet. Most nu- 

 merous in the Cumberland Mts. June, July. Nuts ripe in 

 October. 



C. pumila (L.) Mill. Chinquapin. A shrub or small tree, 

 preferring siliceous soil. O. S. June. Nuts ripe in Septem- 

 ber. 



QUERCUS L. 



Quercus rubra L. Red oak. A large tree, attaining in rich 

 land a height of 140 feet by 7 feet diameter. - O. S. , May. 

 Acorns ripe in October, November. M. 



Q. Texana Buckley. Texan red oak. A large tree when 

 in suitable soil. O. S. April, May. Acorns ripe in Septem- 

 ber, October. Q. palustris Du Roi of first edition. 



Q. coccinea Wang. Scarlet Oak. Big tree from 80 to 100 

 feet high by from 4 to 5 feet diameter. O. S. May, June. 

 Acorns ripe in September, October. 



