苏铁目

25 Species and 3 variations of 6 genus, about 16 percents of Zamiaceae in the family, were introduced to Xiamen Botanical Garden since 1975 to enrich the cycad diversity in China.

摘要厦门植物园自1975年至今已引种保存泽米铁科6属25种和3个变种，约占世界泽米铁科植物种类的16%，丰富了我国的苏铁目植物资源。

With American botanist cypress apply reach Halier, the really beautiful doctrine that British botanist breaths out Qin Song to be a delegate thinks the flower of angiosperm is come by evolution of ball of leaf of primitive gymnospermous bisexual spore, consequently tentative idea angiosperm is the Benneisu that in coming from gymnosperm, eradicates already iron eye, draft Su Tie especially , the bud on ball of its spore leaf piece evolve for perianth, sporule leaf evolves for stamen, big spore leaf evolves for pistil , axis of ball of its spore leaf shortens for rachis.

以美国植物学家柏施及哈利尔，英国植物学家哈钦松为代表的真花学说认为被子植物的花是由原始裸子植物两性孢子叶球演化而来，因而设想被子植物是来自裸子植物中早已灭绝的本内苏铁目，非凡是拟苏铁，其孢子叶球上的苞片演变为花被，小孢子叶演变为雄蕊，大孢子叶演变为雌蕊，其孢子叶球轴则缩短为花轴。

There was a diversification of the gymnosperms, and fossil groups such as the Bennettitales and Caytoniales evolved during this period.

在这一时期存在的裸子植物发生了分化，有本内苏铁目 Bennettitales 和开通目 Caytoniales 的化石可以证明。

Used in some classification systems: a group of extinct fossil gymnosperms coextensive with the order Cycadofilicales.

用于某些分类系统中；一个灭绝的裸子植物化石群，与苏铁蕨目同域。

Palmlike gymnosperms: includes the surviving order Cycadales and several extinct orders; possibly not a natural group; in some systems considered a class and in others a subdivision.

棕榈状裸子植物；包含现在还幸存的苏铁目和其它几个已灭绝的目；可能不是一个自然群体；在某些分类中，被视为一个纲，在另外一些分类中则为一个亚部。

Cycads are plants extending back 250 million years to the early Permian period, before dinosaurs roamed the Earth.

苏铁目是植物延伸影响回溯到二亿五千万年到早期的二叠纪，在恐龙漫游地球以前。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。