142 FOREST TREES. 
The Spanish Oak appears to be somewhat rare in 
the Mississippi valley. It is found in Southern 
Illinois. It is common in the maritime parts of the 
Middle and Southern States, and in favorable situa- 
tions becomes a large tree. Its foliage is very variable. 
The wood much resembles that of the Red Oak, to 
which it is in no respect superior. 
14. Quercus virens—Live Oak. 
Leaves, obtuse, coriaceous, oblong or elliptical, 
hoary beneath ; cup, top-shaped; acorn, oblong. 
The Live Oak belongs to the Southern States, and 
grows only near the sea coast. It is found within 
the limits of this work on the coast of Virginia. 
Further south it becomes a large tree. The wood is 
invaluable, being more esteemed for ship-building 
than that of any other tree. 
Quercus suber, the Cork Oak, was recommended 
by Michaux for cultivation in the Southern States. 
It would probably succeed in North Carolina and 
Tennessee. Like the Live Oak, it is evergreen. 
There are three or four species of dwarf Oaks found 
in the United States, but they are of little value for 
any purpose whatever. 
ROBINIA—LOCUST. 
Natural Ordér, Leguminose. 
Calyx, short, five-toothed, slightly two-lipped; 
standard, large, rounded, turned back; pod, linear, 
flat, several-seeded, margined on the seed-bearing 
edge> two-valved. 
