Endive Salad with Orange Segments and Avocado

Rinse endives, trim, remove stalk and arrange outer leaves in a star shape on plates. Cut remaining leaves into fine strips. Peel avocado, cut in half, remove pit and cut into fine slices. Immediately sprinkle avocado with 1 tablespoon lemon juice. Peel orange taking care to remove all white skins, then cut along partitions and remove orange segments. Collect resulting orange juice. Decoratively arrange avocado and orange segments on endive leaves and cover with endive strips.