在斯里兰卡的佩拉德尼亚植物园内,生长着许多千奇百怪的树木。赛萨树,树龄长得惊人,一棵树要生长五百年,才算成熟。一年时间才能长成一片叶子,结出一个果实。这个植物园内有一条很长的林荫道,两旁尽是这种树。据介绍,这些树还是本世纪初种的,要到公元二千四百年以后,才能长成材。响声树,开花时会发出沙沙的响声,故得此名。它的树龄一般为五十年左右,只开一次花,结一次果。开花前,在呈扁形的树冠上长出蓓蕾,逐渐成熟、开花、结果。花瓣呈金黄色,十分美丽。等到果实熟透,一棵树也将近衰亡。当地有这样一种说法:人的一生中若能见到响声树开花,则被认为是有“福”之人。雨树,原产于美洲,于一八五○年引进斯里兰卡,至今已有一百多年的历史了。雨树的叶子足有半米长,中间凹陷,四周略微隆起。每当傍晚,叶细胞开始 In the Peradeniya Botanical Garden in Sri Lanka, many strange trees grow. Sai Sa tree, grow surprisingly old, a tree to grow five hundred years, be considered mature. A year to grow into a leaf, bear fruit. This botanical garden has a long boulevard, lined with trees of this kind. According to reports, these trees are still the early seeds of this century, to two thousand four hundred years later, to grow into timber. Sound tree, when it is rustling rustle, so the name. Its age is generally about 50 years, only once a flower, knot a fruit. Before flowering, grow buds on the flat canopy, gradually maturing, flowering, the result. Petals golden yellow, very beautiful. When the fruit is ripe, a tree will soon die. There is a local saying that if one can see the sound tree blossom in one’s life, it is considered a blessing person. Rain tree, native to the Americas and imported into Sri Lanka in 1850, has a history of over one hundred years. Rain tree leaves full half a meter long, the middle of depression, slightly raised around. Whenever evening, leaf cells begin