二十年前,夏威夷大学的植物学家吉米·布朗贝克在中美洲寻找玉米基因原生质时,在瓜它马拉和圣·萨尔瓦多的内地偶然发现了一个树种。吉米采集了一些种子,引种在夏威夷。一年时间,有些种子竟长成了两层楼高的大树,八年生已高达60英尺。于是为吉米所发现的这个树种——银合欢便成为热带地区大力发展的树种之一。从印度到 Twenty years ago, when Botanist Jimmy Brownback of the University of Hawaii was looking for corn genetic protoplasm in Central America, he accidentally discovered a tree species in the mainland of Guatemala and San Salvador. Jimmy collected some seeds and introduced them in Hawaii. In one year, some of the seeds actually grew into two-storeyed trees, reaching an eight-year-old as high as 60 feet. As a result, the tree species discovered by Jimmy, Albizia, has become one of the species that have been vigorously developed in the tropics. From India to