With the introduction of grafting as a means of propagating choice papayas in Florida, one named variety, the Simmonds, was established, but the stock has degenerated and it is no longer grown. Grafted plants of the third and fourth generation from the original seedling developed to a height of 3 or 4 feet only, produced a few small fruits, and were always yellowish and sickly in appearance.

There are marked differences in the size, shape, and quality of the fruits produced by different seedlings, and the papayas of certain regions in the tropics are uniformly superior to those of other regions. In Bahia, Brazil, there are two distinct types, one with small nearly spherical fruits not over 6 inches in diameter, and a very superior type called mamao da India which produces fruits 18 inches long, cylindrical in form, and of excellent flavor. The hermaphrodite seedlings produce some of the sweetest fruits, and they usually have thick flesh. Some papayas are very sweet, while others are insipid. The production of seedling races which will produce fruits of good quality and breed fairly true is much to be desired.