PI. 253. 
THE ILAMA OR PAPAUCE, A TROPICAL CHERIMOYA. 
(Annona diversi/olia Safford. See S. P. I. No. 46781.) 
It has long been known that the delicious cherimoya does not succeed 
in the tropical lowlands. It belongs in the subtropics, or in the 
Tropics at high altitudes in mountain valleys and on plateaus. 
Even in Florida it is not altogether successful, the climate apparently 
being too tropical for it. The little-known ilama or papauce from 
southern Mexico and Central America has many of the character- 
istics of the cherimoya and, unlike the latter, is suited to cultivation 
in the tropical lowlands. It seems destined to take the place, in 
those regions, of the highland species whose lack has been keenly felt. 
(Photographed by Wilson Popenoe, Tapachula, State of Chiapas, 
Mexico, July 2, 1918; P17513FS.) 
