  The evolution of the 7Li abundance in the Galaxy has been computed by taking
into account several 7Li sources: novae, massive AGB stars, C-stars, Type II
SNe and GCRs. The theoretical predictions for the evolution of the 7Li
abundance in the solar neighborhood have been compared to a new compilation of
data. A critical analysis of extant observations revealed a possible extension
of the Li plateau towards higher metallicities (up to [Fe/H] = -0.5 or even
-0.3) with a steep rise afterwards. We conclude that 1) the 7Li contribution
from novae is required in order to reproduce the shape of the growth of A(Li)
versus [Fe/H], 2) the contribution from Type II SNe should be lowered by at
least a factor of two, and 3) the 7Li production from GCRs is probably more
important than previously estimated, in particular at the highest
metallicities.
