The theme of potted miniature plants was carried out on this set of four stamps. They feature an oak tree, a five-leaf pine, a Lohan pine, and a banyan tree. 　　The art of potted plants originated in China, where it has been loved since ancient times by the literati. And now it has been developed as a form of art valued by people the world over. A well organized potted plant provides a beautiful scene, a view that calls for a poem for a world, though small, that we have always loved.