The genus Zelkova, belongs to family Ulmaceae, has 10 spicies, of which 3 distribute in China. They are Zelkova schneideriana Hand. -Mazz., Z. Serrrata(Thunb.) Makino and Z sinica Schneid. Among them, Z. schneideriana is not only a broad-leaf hard-wood species, but also a high-value one for gardening. Due to its high quality with beautiful veins, and physical properties in timber, Z schneideriana is popular in both international and domestical market for indoors' decoration, furniture making, as well as for...