In some circles, Pamela Dennis has built a reputation as a reliable purveyor of classic yet eye-catching eveningwear. This season, black leather was crucial to her collection, showing up on slim skirts and trousers that were paired with limestone gauze shirts and beaded camisoles. Graphite lamé organza ball skirts, crinkled skirts, stretch-wool cocktail dresses and gazar asymmetrical gowns completed the show.