LUTHER BURBANK 
have become hardy enough to resist winters of 
almost Arctic severity is in itself an all-sufficient 
evidence of the adaptability of the fruit bearers, 
and should be an inspiring object lesson to the 
experimenter with fruits that still retain the trop- 
ical and sub-tropical habit. 
It requires no very great powers of prophetic 
vision to forecast a day when a large number of 
fruits that now are known only in sub-tropical 
zones will have made their way, under guidance 
of the plant developer, across many degrees of 
latitude that at present seem like impassable 
barriers. 
The Feijoa (pronounced fay-zho-a) or fig guava 
(Feijoa Sellowiana) from Brazil, a vigorous fruit- 
ing shrub; the Cherimoya (Anona cherimolia) 
from the Central American highlands, which has 
been classed with the pineapple and the mango- 
steen as making up the trio of the world’s finest 
fruits; the Australian Macadamia (Macadamia 
ternifolia), prized for both fruit and nut; the 
Natal Plum (Carissa grandiflora) from South 
Africa, with its fragrant flowers and scarlet fruit; 
and the White Sapote (Casimirva edulis) from 
Mexico with quince-like fruit of unique flavor— 
these are among the tropical and sub-tropical 
products that have come to us within recent years 
and that promise to make secure place for them- 
[302] 
