A fleuron in architecture may have a number of meanings. It is a collective noun for the ornamental termination at the ridge of a roof such as a crop, finial or épi. It is also a form of stylised late gothic decoration in the form of a four-leafed square, often seen on crockets and cavetto mouldings. It can be the ornament in the middle of each concave face of a Corinthian abacus. Finally it can be a form of Anthemion, the decorative Greek floral decoration.[1]