Bui. 815, U. S. Dept. of Agriculture. 



Plate IV. 



Typical Fruits from a Tree of the Bull Strain of the Lisbon Lemon. 



Several variations and at least one mutation are shown: 1, Rounded, split end; 2, coarse, Lisbonlike; 

 3, creased; 4, Lisbonlike; 5, finely corrugated; 6, variegated; 7 and 8, normal Bull strain, collared 

 and protrudmg; 9, collared and variegated; 10, collared, protruding and variegated. About three- 

 sevenths natural size. The natural size of the fruit at the upper right hand is 3 inches long. 



