LUTHER BURBANK 
which this species was crossed with the quince 
and with the pear. 
I have grown numerous seedlings from a cross 
of the apple and the common quince, Cydonia 
vulgaris, and also the giant Chinese quince, 
Cydonia sinensis. This cross was made both ways 
in both cases. This is a cross between genera. 
Some of these hybrid seedlings grew quite 
rapidly. The growth was generally peculiar, being 
compact and stubby, and often with an unhealthy 
appearance, especiaily towards the last of the 
season. The foliage and bark most often resem- 
bled the quince. 
I expected good results from these interesting 
hybrids, but not one ever produced even a blos- 
som. The developments were the same in all seed- 
lings, however the cross was made. After a few 
years they would decline and die, whether grafted 
on the quince or the apple or growing on their 
own roots. 
Several varieties of apples were also crossed 
with the Bartlett and other pears. This is also a 
bigeneric hybrid, and the result was in the end 
similar to that of crossing the apple and the 
quince. Most of these seedlings were abnormal 
in their growth. They were generally dwarfed, 
but in some cases exceedingly rapid growers were 
produced, especially when the Bartlett pear was 
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