OAKS OF CALIFORNIA by Bruce M....

OAKS OF CALIFORNIA by Bruce M. Pavlik, Pamela C. Muick, Sharon Johnson and Marjorie Popper (Cachuma Press, PO Box 560, Los Olivos, CA 93441: $19.95, illustrated). A joint publication of Cachuma Press and the California Oak Foundation, this handsome volume offers a detailed introduction to the 18 indigenous species of oak. The informative text stresses the importance of oaks in creating unique micro-environments: A single tree may provide food and shelter for a host of fungi, insects, birds and mammals.