日本金松(Sciadopitys vertlcillata Sieb et Zucc),常绿乔木,是特产于日本山区的孑遗植物。在裸子植物中属杉科(TAXODIACEAE),仅一属一种。在原产地,高可达40米,胸径可达3米。枝近轮生,水平伸展,树冠尖塔形;合生叶条形、扁平,着生于不发育的短枝的顶端,幅射状开展,在枝端呈伞形。树形优美,是珍贵、稀有的树种,与雪松、南洋杉为世界著名的三大庭园观尝树种。也是良好的用材树种(见图一)。我园于1935年引种日本金松。现有栽培大树4株,生长良好,博得来园参观者的好评,迫切希望我们提供种苗。但由于目前种子来源困难,为了解决金松苗木问题,无性繁殖就成了 Japan Sciadopus siccicliana Sieb et Zucc, an evergreen tree, is a relict native to Japan’s mountainous areas. In the gymnosperm genus Taxodiaceae (TAXODIACEAE), only one genus. In the place of origin, up to 40 meters high, breast diameter up to 3 meters. Branches nearly whorled, horizontally spreading, crown-pointed-stellate; connate leaves striate, flattened, adnate to the apical side of an underdeveloped spur, radiantly spreading, umbrella-shaped at branches. Beautiful tree shape, is a rare, rare species, and cedar, Araucaria for the world famous three large garden to observe the tree species. Is also a good timber species (see Figure I). I Park in 1935 introduced Japan’s Golden Pine. The existing 4 large tree cultivation, good growth, won the praise of visitors to the park, an urgent hope that we provide seedlings. However, due to the current source of seed difficulties, in order to solve the problem of gold seedlings, asexual reproduction became