88 Bulletin of the University of Texas 



trees are broad and rounded. The bark is %/-V2' thick, 

 divided into small angular plates, covered with black scales. 

 Leaves oblong-lanceolate to oblong-obovate 2'-5' long, 

 i/*/-! 1 /^ wide, entire or with undulate margins, sometimes 

 slightly lobed near the apex, blue green above, pale hairy 

 beneath, slightly bristle tipped. Acorns borne sessile, pro- 

 duced in great numbers; nut oblong to subglobose, V:/ long, 

 light brown often striate, hoary pubescent at the apex; cup 

 saucer-shaped enclosing the nut only at the base or for about 

 one-half its length. 



North Carolina to Florida and west to Texas. It occurs 

 principally on sandy uplands, mostly near the coast. In Texas 

 it extends to the valley of the Brazos. 



The wood is hard, close grained, strong. It is used prin- 

 cipally for fuel. The trees of our area are small. 



MORACEAE. The Mulberry Family. 



Trees with milky sap; leaves simple, alternate, two ranked, 

 serrate entire or variously lobed, 3-5 veined at the base ; flow- 

 ers borne in ament-like spikes or heads on the outside of a 

 receptacle or on the inside of a closed receptacle ; fruit com- 

 pound, drupaceous. 



1. Flowers on the outside of the receptacle. 



a. Flowers all in spike like catkins, fruit an 

 . elongated edible berry somewhat re- 

 sembling the blackberry 1. Morns. 



b. Pistillate flowers in heads, fruit globose, 

 not edible. 



(1) Branches arme-d with thorns, leaves 



en.tire 2. Toxylon. 



(2) Branches unarmed, leaves serrate or 



lobed 3. Broussonetia. 



2. Flowers borne inside a hollow receptacle- 4. Ficus. 



1. MORUS. The Mulberries. 



Trees with edible fleshy fruit, milky juice; flowers monoe- 

 cious or dioecious; leaves often deeply irregularly lobed. 



