LIN. LINDEN. 45 



The leaves are covered beneath with a thin, rusty down. The 

 flowers are smaller than in the preceding species, and the dry glo- 

 bose fruit is small, pubescent, and usually one-seeded. The winter- 

 buds, which are covered with a short, fine pubescence, are of a 

 dark reddish-brown color. The Southern lin has numerous usually 

 deeply seated lateral roots. 



The wood is similar to that of Tilia americana, of which this 

 tree has been considered a variety. 



Tilia heterophylla, Ventenat. 



(lin. linden.) 



A tree, with slender branches forming a pyramidal head, and 

 furrowed bark broken into short thin light brown scales, occa- 

 sionally reaching a height of 60 and a diameter of 4 feet. (Plate 

 III.) 



3-rowing in moist soil, often over limestone rock, it occurs from 

 Pennsylvania southward along the Appalachians to northern Ala- 

 bama and central Florida, and westward to middle Tennessee,, 

 Kentucky, and southern Indiana and Illinois; and reaches its best 

 development on the mountain slopes of eastern Tennessee. It is 

 not common. 



In this State, where it reaches an average height of 40 feet and 

 an average diameter of 12 to 18 inches, it is most common in the 

 mountains, (fig. 5, p. 43), and occurs sparingly in the Piedmont 

 plateau and coastal plain. It is much more abundant in North 

 Carolina than Tilia americana, and bears seed more frequently 

 and .generally in greater quantity. It is readily propagated by 

 shoots. Unless protected the low growth is almost immediately 

 eaten by cattle. 



The linden borer, Saperda vestita, Say, bores into the sapwood 

 of the standing tree. 



The leaves are generally larger than those of Tilia americana, 

 and are covered on the lower side with a silvery white down. 

 The flowers appear earlier in the spring, and the round fruit, f 

 inch in diameter, is covered with short gray down. The egg- 

 shaped winter-buds are bright red, covered with a whitish bloom.. 



