苏铁

The survivorship curve accorded with exponential function and belonged to style Deevey Ⅱ〓.

仙湖苏铁种群存活曲线与指数模型拟合效果更好，属于Deevey Ⅱ〓型存活曲线。

Tieshu also known as cycads, banana Fissidens.

铁树 又名苏铁、凤尾蕉。

The results showed that conifers were the closest relatives of Ginkgo with gnetales being nested within conifers, and cycads were the most primitive in gymnosperms.

多基因综合分析表明，银杏与针叶植物的亲缘关系最为亲近，买麻藤为针叶类内起源，苏铁为裸子植物中最原始的类群。

In a whole, the population viability was declining and the viability of seedlings and mid-aged plants was sematic.

总体而言，仙湖苏铁种群生存力已呈下降趋势，幼龄级和中龄级的生存状况令人担忧。

Trunk inflated; bark white-gray, nearly smooth toward base of trunk; median leaflets often less than 10 mm wide; petiole densely spinose from base upward; seeds 3.5-4.5 cm

树干膨大；树皮白色灰色，对于树干的基部的近平滑；中间的小叶通常不到10毫米宽；向上的浓密的叶柄具刺的自基部；种子3.5-4.5厘米 9 Cycas hainanensis 海南苏铁

The strobili of gymnosperms and cycads are also termed cones.

另外，还可将裸子植物和苏铁植物的球果称为 cones。

Trunk often dichotomously branched toward apex, to 16 m, apex not tomentose; bark gray or white-gray, smooth toward base of trunk; leaflets with midvein sulcate adaxially and margin revolute to slightly recurved; seeds 4.5-6 × 4-4.7 cm

树干通常二歧分枝向先端，令16米，先端的是不；对于树干的基部灰色或白色灰色，平滑的树皮；中脉具槽的小叶具正面和边缘外卷在稍下弯；种子 4.5-6 * 4-4.7 厘米 16 Cycas pectinata 篦齿苏铁

It was conclude that wind and weevils were effective pollination vectors for C. elongata, which inconsistent that Zamiaceae was host-specific insect pollination.

可见，风媒和虫媒都是越南篦齿苏铁的有效传粉途径，与泽米铁类植物为专一寄主性昆虫传粉的结论不一致。

Karyotype analysis of Cycas panzhihuaensis L.

Title 攀枝花苏铁的核型分析。

They expected to find evidence of well-known Late Cretaceous vegetation such as conifers and cycads.

他们原本期望发现晚白垩世时期著名植物如针叶树和苏铁存在的证据。

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。