BUD VARIATION IN THE EUREKA LEMON. 
19 
DENSE-UNPRODUCTIVE STRAIN. 
The trees of the Dense-Unproductive strain are the least productive 
of any of those of the Eureka variety under observation in the per- 
formance-record plats, and the light yield of these trees is coordinated 
with a correspondingly inferior quality of the fruits. In many ways 
they resemble the trees of the Shade-Tree strain. The crops of 
fruit are borne at about the same season, but the habit of growth of 
the trees, instead of being spreading, is more erect and dense, as 
shown in figure 6. 
Fig. 6.— A typical lemon tree of the Dense-Unproductive strain of the Eureka variety, 10 years planted 
The vigorous and dense vegetative characteristics and lack of fruit are very marked. 
The trees usually have a large amount of vigorous vegetative 
growth, or suckers. The leaves are usually not as large as those of 
the Shade-Tree strain, but in general their shape and color are very 
similar. The number of leaves produced by the trees of this strain 
is greater than is the case with the trees of the Shade-Tree strain. 
The percentage of imperfect flowers of the trees of this strain is larger 
than in those of the Shade-Tree strain. This abnormal condition of 
the blossoms is partly responsible for the light yield of fruits of the 
trees of this strain. The pistils are often small, rudimentary, or 
