Next to it comes the caltha, the flowers of which are of similar colour and size;1940 in the number of its petals, however, it surpasses the marine violet, the petals of which are never more than five in number. The marine violet is surpassed, too, by the other in smell; that of the caltha being very powerful. The smell, too, is no less powerful in the plant known as the “scopa regia;”1941 but there it is the leaves of the plant, and not the flowers, that are odoriferous.