150 Bulletin of the Unversity of Texas 
close grained, yellow or brown. A gum exudes from freshly 
eut wood. 
STYRACEAE A. De Condolle. The Storax Family. 
Mohrodendron Britton. Silverbells. 
Trees or shrubs with alternate, membranous, deciduous 
leaves, flowers in lateral drooping clusters and dry nut-like 
fruit, 2-4 winged. 
Erwit 2-wineed. v.30 2 Oo Sees acl tee ee eee 1. M. dipterum. 
Pri. 4wanled. oo s.Ge es coe cis Ss Se Ee eee cee Rabo: 2. M. Carolinum. 
1. Mohrodendron dipterum (Ellis) Britton. Snowdrop 
Tree. A shrub or small tree 20°-80° high with scaly, reddish 
brown bark and light green twigs which finally become red- 
dish brown. Leaves firm, ovate to obovate, pointed at the 
apex, 4’-5’ long, 114’-3’ wide, coarsely toothed, hght green 
and smooth above except along the veins, hairy beneath. Flow- 
ers white, showy, in clusters. Fruit an oblong or elliptic, 
2-winged drupe. | 
In moist places, Tennessee, South Carolina, Florida and 
Texas. Frequently planted for ornament. 
2. Mohrodendron Carolinum (l.) Britton. Silverbell Tree. 
A shrub or small tree with ascending branches and reddish 
brown scaly bark. Leaves thin, oval to obovate, pointed at 
the apex, finely toothed, smooth above except along veins, 4’-6’ 
long, 2’-3’ wide, hairy beneath. Flowers white, showy, bell- 
shaped in clusters. Fruit an oblong ovoid drupe, 4 winged. 
In woods, Virginia to Illinois, Florida and Texas. Planted 
for ornament. 
OLEACEAE Lindley. The Olive Family. 
Trees or shrubs with mostly opposite, simple or compound 
leaves. Flowers in clusters, perfect or dioecious. Fruit a 
samara or a drupe. 
Fruit a dry samara, leaves compound............. 1. Fraxinus. 
Fruit fleshy, leaves simple. 
Flowers -white, ShOWy 2. so.cssceesine teekee ee 2. Chionanthus. 
Flowers Sreenish, smalls... 322%. ce ee ees wee 3. Adelia. 
