the new book "Frutas No Brasil" has some great new pics and info about A. dioica.
So far this species has been very easy to grow, I just hope it starts to set some fruits...I got flowers last year on my two seedlings (now in 25 gal pots), and it looked like fruit set, but they refused to grow, and after a few months of staying green, they dropped off.
still early in the game, it was the first year they had a good bloom...
I think this Annona has potential for container growers, and rare fruit collectors.