66 Tennessee Flora. 



tion, and is ^catteringly found in the woods in E. Tenn. 

 April. M. 



P. heterophylla L. Swamp or downy poplar. In wet wood- 

 lands. Aprils May. 



P. grandidentata Michx. Credited to our State in Gray's 

 Manual. 



P. deltoides Marsh. Cottonwood. P. monilifera Ait. Fre- 

 quent in all parts of the State. April, May. ^ 



P. dilatata Ait. Lombardy poplar. Frequently planted, 

 but short-lived in this State. 



SALIX L. 



Salix nigra Alarsh. Black willow. Banks of streams. O. 

 S. April, May. M. 



S. Wardii, Bebb. Along Cumberland River, Nashville. 

 April. 



S. lucida Miihl. Mts. of E. Tenn. April, May. 



S. Babylonica L. Weeping willow. Widely cultivated. 

 O. S. Native of Asia. April. 



S. purpurea L. Basket willow. Introduced and cultivated 

 for wickerware. March, April. 



S. humilis Marsh. Prairie willow. In the oak barrens in 

 dry soil and on the high moiintains. Summit of Big Frog Mt. 

 April. 



S. tristis Ait. Dwarf gray willow. In dry barrens.- Tul- 

 lahoma. March, April. 



S. sericea Marsh. Banks of White Top Creek, S. W. Va. 

 J. K. Small. May. 



S. petiolaris J. E. Smith. Frequent around Nashville. 

 Grows to a tree thirty feet high. April. 



S. longifolia Miihl. S. fluviatilis Nutt. W. Tenn. April, 

 May. 



S. alba L. Introduced from Europe. In moist soil. April. M. 



BETULACEJ5 Agardh. 

 CARPINUS L. 



Carpinus Caroliniana Walt. American hornbeam. Water 

 breech. In moist woods. O. S. April, May. Fruit ripe in- 

 August, September. 



OSTRYA Scop. 



Ostrya Virginiana (Mill.) Willd. Hop hornbeam. Iron- 

 wood. In dry lands. O. S. April, May. Fruit ripe in July, 

 August. 



