text: how many types of trees are there in the world? i am doing a report on trees and one of the questions was how many types of trees there are in the world.  i couldn't find it anywhere and i was hoping that you could help me out.  do you think you could tell me how many types of trees there are in the world?  not how many there are but how many types there are.  i really appreciate your consideration.  thank you. too many types. scientists are still counting and discovering new kind.