Floral potpourri -- Lakeside Cafe & Deli in the American City Building, 10227 Wincopin Circle, Columbia, is showing A Floral Potpourri, watercolors by botanical illustrator Peggy Duke through Nov. 2. Duke, who lives in Fulton with her husband, botanist and author James Duke, is a member of the Guild of Natural Science Illustrators and the Society of Women Geographers. Cafe hours are from 7 am. to 8 p.m. Monday through Friday, 8 a.m. to 8 p.m. Saturday. 410-772-3694 or 301-498-3946.