This paper is about the use of a large-coverage syntactic lexicon for text parsing. Our work focuses on the construction of a lexicalized unification grammar using the fine-grained syntactic information encoded in the lexicon-grammar tables built at LADL (France). We present a method to generate this grammar from a hand-built meta-grammar composed of parameterized graphs. For each lexical item in our lexicon, a specialized grammar is generated by resolving the parameters referring to syntactic properties encoded in the lexicon-grammar tables. We also show that our method can be adapted to a more complex lexicon in the form of relational tables.