PLATE 61 
1. —Like figures i and 2 of Plate 60, but with the intumescence still covered by an 
epidermis and free from cork. Incipient vessels can be seen entering the tumor from 
the leaf bundles. Upper surface of leaf at the top. X 160. 
2. —Alcohol-acetic-acid intumescence in which entire thickness of the cauliflower 
leaf is involved. In this instance the larger part of the growth is from the palisade 
tissue (at the top). X 160. 
67908°—17 - 10 
