Final answer:
The number of trees in Aldrich Park and on campus at the University of California, Irvine is not provided. However, there are multiple species of eucalyptus trees in Aldrich Park.
Step-by-step explanation:
The number of trees in Aldrich Park and on campus at the University of California, Irvine is not provided in the given information. However, according to the question, Aldrich Park has multiple species of eucalyptus trees. One example of a eucalyptus species that can be found on the UC Irvine campus is the Lemon-scented Gum (Corymbia citriodora).