Husband-and-wife team Richard Landau and Kate Jacoby give vegan cuisine a good name at their inventive, modern bistro inside a handsome row house. In the chef's deft hands, roots and leaves become the stuff of haute cuisine in dishes like "seared maitake mushroom" with celery root fritter, smoked remoulade and leek ash vinaigrette. Cocktails with housemade syrups and bitters are also musts. Reservations required. D (M-Sa).