THE ACORN AND ITS GERMINATION 11 
of small points which have resulted from the breaking 
of some extremely delicate groups of minute pipes, 
Fia. 1.—Sprigs of oak, showing the habit and the arrangement of 
the acorns, &c., in September. (After Kotschy.) 
called vascular bundles, which placed the acorn in com- 
munication with the cup and the tree previous to the 
