Bulletin of the University of Texas 



Page 

 m. Leaves aromatic, entire, 



or 2-3 lobed Sassafras 142 



n. Leaves 5-7 lobed, juice 



milky Ficus 92 



o. Leaves 3-5 lobed, the lobes 

 blunt pointed, fruit a 

 leathery capsule opening 

 before maturity, bark 



smooth Firmiana 141 



b. Leaves with only one primary vein 

 at base. 



(1) Blade of leaf lobed, fruit an acorn. Quercus 63 



(2) Blade of leaf entire. 



(a) Leaves long, more than six 

 inches. 



x. Fruit a banana-like struc- 

 ture, flowers opening be- 

 fore or with the leaves, 

 leaves broadest above the 

 middle, emitting a foetid 

 odor when crushed .Anonaceae 102 



y. Fruit a cone-like body, 

 flowers opening after the 

 leaves Magnoliaceae . . . 103 



(b) Leaves less than six inches in 

 length. 



x. Leaves evergreen. 



(x) Bark and leaves aro- 

 matic Lauraceae 141 



(y) Bark and leaves not 

 aromatic. 



(x) Fruit and acorn, 

 leaves sometimes 

 serrate on young 



twigs Quercus in 



Fagaceae 63 



(y) Fruit a black 

 drupe with thick 

 skin, leaves leath- 

 ery, pointed at 



the apex Laurocerasus ...113 



y. Leaves deciduous, 

 (x) Leaves scale like. 



(x) Trees with thorns. Koeberliniaceae 12-5 

 (y) Trees w i t h o u t.Tamaricaceae ..141 

 thorns. 



