Authority: Berg, Cornelius C. 2001. Moreae, Artocarpeae, and (Moraceae): With introductions to the family and and with additions and corrections to Flora Neotropica Monograph 7. Fl. Neotrop. Monogr. 83: 1-346. (Published by NYBG Press)
Discussion:Recent botanical exploration has hardly affected the genus. Most additional collections have been made within the known ranges of distribution. Only the extension of the range of Castilla ulei to Amazonian Ecuador is noteworthy.