BUD VARIATION IN THE LISBON LEMON. 7 
The typical fruits, as shown in Plate I, are oblong oval in shape, 
of medium size, and of very smooth texture. The rag is tender, and 
the juice is abundant and of strong acidity. The fruits average about 
four seeds each, and the rinds are thin. 
In addition to the characteristics noted in the foregoing para- 
graphs, it seems evident that the trees of this stram are more inher- 
ently hardy than those of the other Lisbon strains. They are usually 
more thorny than the trees of the Open strain, but the thorns are 
usually not very large or dangerous to the fruits. For certain con- 
ditions of soil and climate, such as locations where the trees are 
subjected to strong winds at certain seasons of the year or to long 
periods of hot sunshine, it seems likely that the trees of the Lisbon 
strain are preferable to those of the Open strain on account of the 
protection afforded the fruits by the dense foliage and the resistance 
of the trees to unfavorable environmental conditions. 
OPEN STRAIN. 
The name of this strain was adopted because it describes the habit 
of growth of the trees, which is one of its most easily identified char- 
acteristics. The trees of the Open strain were more numerous 
than those of any other strain in the performance-record plat. In 
near-by orchards the proportion of trees of this strain was found to be 
much smaller than in the performance-record plats, and the leading 
strain was the Lisbon. In other Lisbon orchards in several impor- 
tant districts most of the trees in the orchards were found to belong 
to the Open strain. In certain districts the Lisbon strain is most 
commonly found, while in others the Open strain predominates. 
It has seemed likely that the trees included in this strain really 
represent two rather distinct strains, the trees of one beng very much 
more productive than the other. However, for the purposes of this 
study the two classes of trees have been brought together under 
one head and considered as belonging to one strain. 
The trees produce fruits during all seasons of the year under nor- 
mal conditions, resembling in this respect the trees of the Eureka strain 
of the Eureka lemon variety. As shown in figure 2, they have an 
open and somewhat droopmg habit of growth. The leaves are-of 
medium size, ovate in shape, obtuse, slightly crenate, rather few in 
number, and are of a deep-green color. The flowers are usually per- 
fect. 
The typical fruits, as illustrated in Plate II, are oval to oblong in 
shape and of medium size; the rinds are thin and of smooth texture; 
the rag is tender; and the juice is abundant and of strong acidity. 
The average number of seeds found in the fruits of this strain in the 
performance-record plats was five. 
