30 
BULLETIN 1483, U. S. DEPARTMENT- OF AGRICULTURE 
rence appear to be of little commercial importance, will be briefly- 
described in the following paragraphs. 
Variegated-leaf limb variations occurring in trees of the Valencia 
strain otherwise normal have been found thus far in three orchards. 
In two of these instances the outer edges of the leaves have been of a 
light creamy color, and the central portions have been normal, show- 
ing one or more shades of light green with a dark-green central 
area. In one instance the leaves of the variegated-limb variation 
had small sharply defined light-colored spots of irregular shape 
rather evenly distributed over the entire surface of both the upper 
and lower sides of the leaves. In all cases the vigor of growth of the 
variegated limbs was less than that of normal branches on the same 
parent trees. 
On some variegated limb sports the fruits are apparently normal, 
whereas on others they are very similar to normal fruits except in 
color and texture. Where the fruits are abnormal in color they 
Fig. 17. — Typical fruits of the Misshapen-Leaf strain of the Valencia orange which 
were produced by one of the progeny trees illustrated in Figure 15. Riverside, Calif., 
June, 1915. (About seven-tenths natural size) 
are usually marked with streaks or sections of darker orange color, 
which are coarser in texture and raised somewhat above the adjacent 
areas of the rind. These characteristics, as well as their slightly 
smaller average size, render the commercial value of these oranges 
inferior to that of the normal fruits. 
Although the progeny tests of variegated Valencia limb variations 
have not gone far enough to warrant final conclusions as to their 
fruit production, the growth of the progeny trees, particularly the 
character of their leaves, proves conclusively that the variegated-leaf 
condition has been perpetuated through budding. A branch from a 
young progeny tree of the variegated strain is shown in Figure 20. 
Limb and individual-fruit variations showing oranges with typi- 
cal navels have been found in trees of the Valencia strain as well 
as in those of several other Valencia strains. As a rule, the navels 
are of small size, and the navel opening is usually very small or 
entirely lacking. Otherwise these fruits, so far as studied, seem to 
