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研究福建省南靖县和溪南亚热带雨林下木层植物滴水叶尖的发育情况以及滴水大小．该森林滴水叶尖发育程度中等，离叶尖端３ｍｍ处的叶宽平均为２．３７ｍｍ，粗叶木的最小，为０．９５ｍｍ，瓜馥木的最大，为４．９５ｍｍ．水滴大小平均为０．０４４ｇ，日本五月茶的最小，平均为０．０２３ｇ，瓜馥木的最大，平均为０．０７８ｇ．水滴大小与滴水叶尖宽度存在极显著的正相关（ｐ＜０．００１），滴水叶尖越发达，下落的水滴越小．滴水叶尖的作用首先是迅速、有效地排除叶面上的积水，此外可能与对土壤类型的适应有一定的关系．
Study on the development of drip leaf tips and the size of drip in the subtropical rainforest in Nanjing County, Fujian Province. The forest drip tip of the medium degree of development, 3mm away from the tip of the tip of the leaf width average of 2.37mm, the smallest crude wood, 0.95mm, the largest melon wood, 4.95mm. The average size of water droplets 0.044g, the smallest Japanese tea in May, an average of 0.023g, the largest melon wood, with an average of 0.078g. There was a significant positive correlation between droplet size and drip width (p <0.001). The more developed the droplet tip was, the smaller the droplet was. The role of drip tip first and foremost to quickly and effectively rule out the water on the foliage, in addition may have to do with the adaptation of soil types have a certain relationship.