络石,夹竹桃科的攀援木质藤本,夏季开白色微香的小花,故又名“白花藤”。由于它茎上密生的气根可伸入岩缝往上爬,故也俗称“爬山虎”。各地常用于墙壁院落遮荫。习见者小叶络石,叶片小,色浓绿,经久不凋,秋冬还会变紫红。其茎柔软易分枝,萌发力强,唯增粗较慢。络石的盆栽早见于河南鄢陵。由于其枝条细弱,所以传统栽培是采用捏形法。即在盆土内插入拱形竹条或铁丝等,随着枝条的不断生长而人为地将其调整攀附在支撑物上,从而捏成各种图形,如片状、筒状等。笔者经三年 Limestone, Apocynaceae climbing wooden rattan, the summer open white micro-fragrant flowers, it is also known as “white flower rattan ”. Because it stems on the root of the entrails can extend into the rock crevices, it is also commonly known as “ivy ”. Commonly used in the walls around the house shade. Lost lobular limestone, small leaves, dark green color, not withered, autumn and winter will become purple. Its stems soft and easy to branch, strong germination, only thicker slower. Limestone pot early found in Yanling, Henan. Because of its weak branches, so the traditional cultivation is the use of kneading method. That is inserted in the basin soil arched bamboo or wire, etc., with the continuous growth of branches and artificially adjust the cling to the support, which pinch into a variety of graphics, such as sheet, tube and so on. The author after three years