  We consider general aspects of the realization of R and non-R flavor
symmetries in the AdS_5 x H_5 dual of 4d N=1 superconformal field theories. We
find a general prescription for computing the charges under these symmetries
for baryonic operators, which uses only topological information (intersection
numbers) on H_5. We find and discuss a new correspondence between the nodes of
the SCFT quiver diagrams and certain divisors in the associated geometry. We
also discuss connections between the non-R flavor symmetries and the enhanced
gauge symmetries in non-conformal theories obtained by adding wrapped branes.
