The glands on one are kind of round, yellow and are on the back of the leaf. The glands on bonitin's look completely different and are visible on the front of the leaf. It could take months to look at all the possibilities since there are so many different Croton in the world and so many in South America; is it safe to say the identification of bonitin's is correct? Or should we be cautious and wait for more detailed photos. (A good reason to make another trip to Brazil.
) I saw a link that some new Croton types had been identified in Brazil...let me look for the link and get back.