PLATES XI. AND XII. 
“ Collar Rot ” (Fmarium limonis). 
Fig. 
1. Stem of Lemon showing effects of collar rot. This disease begins 
at or a little beneath the surface of the ground, and is accompanied by 
copious gumming. This tree was about four years old, and bore an abun¬ 
dant crop of fruit, but it was evidently far gone with disease. 
A little above the surface of the ground (indicated by a horizontal 
line) the bark not yet destroyed was seen to be much cracked, and pale 
straw-coloured masses of the fungus adjoined the cracks (nearly nat. 
size). 
