Preheat oven to 425 degrees F. Line 9 inch pie plate with pastry. For filling, toss together sugar, flour, cinnamon, nutmeg, lemon peel and salt with blackberries. Place filling in pie crust; dot with butter.
Roll out remaining pastry for top crust; cut a few slashes and cover filling with slashed top crust make a decorative edge. Bake 50 minutes or until the pie crust is golden brown.