查询词典 fern

Bracken fern-green and purple fern are usually called the Green fern fern sheep, cattle known as the Purple fern fern.

蕨菜分绿蕨和紫蕨两种，通常把绿蕨叫做羊蕨，把紫蕨称为牛蕨。

This study will be mainly through potted lotus leaf fern Adiantum seedlings and wire division to transplant fern, and then through the different light intensity and moisture content of the orthogonal to quantitative research lotus leaf fern Adiantum optimum growing conditions, and through Transplant Research Laboratory test pilot of the two species, competition between species to find lotus leaf fern Adiantum way to protect endangered mechanism and provide a theoretical basis.

本研究主要通过盆栽将荷叶铁线蕨的幼苗与铁线蕨进行分株移植，再通过在不同光照强度和水分含量的正交实验来定量研究荷叶铁线蕨最适生长条件，并且通过实验室移栽试试验探究两物种之的种内，种间竞争关系为寻找荷叶铁线蕨濒危机理和保护途径提供理论依据。

Regardless of the kind of competition, lotus leaf fern Adiantum in 5400 lux light intensity, 60 percent of soil moisture conditions, the total biomass of the largest, which also shows a lotus leaf fern Adiantum more to live in this habitat, but In such a habitat, the species of lotus leaf fern Adiantum competition among the lowest relative intensity, but these habitats and less dispersed.

无论有无种内竞争，荷叶铁线蕨在5400lux光照强度，60%土壤含水量的环境条件下，总生物量最大，这也说明了荷叶铁线蕨更适应生活在这个生境中，但是在这种生境，荷叶铁线蕨的种间竞争相对作用强度最低，而且这些生境少并分散。

Through research, give the following conclusion: there is no competition, lotus leaf fern and wire fern Adiantum as drought intensifies, the total biomass of a decreasing trend when the water content at the same time, with the intensity of Increase in total biomass showed an increasing trend, LAR general with the increase in soil moisture and lower, with light to reduce the increase, when in a kind of competition within and between species, the lotus leaf fern Adiantum the total biomass is still followed Such laws, but because the resources snatch the total biomass decreased significantly.

通过研究，得到以下结论：在不存在竞争的情况下，荷叶铁线蕨与铁线蕨随着干旱的加剧，总生物量呈降低的趋势；当处于同一水分含量时，随着光强的增加，总生物量呈增加的趋势，LAR一般随土壤含水量的增加而降低，随光强的增加而降低，当处于种内和种间竞争时候，荷叶铁线蕨的总生物量仍遵循这种规律，但是因为资源的抢夺造成总生物量明显降低。

Ferns are found in the valleys in a great variety, the most striking being the Gleichenia Dichotyma,, a hardy fern which covers the hills up to a altitude of 1,600 feet. the following kinds grow only in damp shady spots: Aspidium or shield fern; and Selaginella or Moss fern.

还有，蕨类植物在山谷里随处可见，最有名的是里白木（一种耐寒的蕨类植物，生长在海拔1600英尺的山上），但是绵马根和卷柏这两种蕨类植物只生长在阴暗潮湿的地方。

In fact Cyatheaceae alias "Alsophila spinulosa,""tree fern", is a fern Cyatheaceae door for the dinosaurs left over from the period of rare and endangered plants, a "living fossil" known.

喜酸生土壤，常生长在山沟的潮湿坡地和溪边阳光充足的地方，常数十株或成百株构成优势群落。孢子体生长缓慢，生殖周期较长。

In this paper the authors reviewed the characteristics in the different phases in the life cycle of ferns. Special attentions were given to the effect of light, plant growth regulators, water and temperature on the fern gametophyte development, and the effect of antheridiogen, light, calcium and other plant growth regulator on the formation and differentiation of fern sex organ.

作者概述了蕨类植物生活周期中不同发育阶段的特点，并着重介绍了光、植物生长调节物质、水和温度等因素对蕨类植物配子体发育的影响以及成精子囊素、光、钙离子和其它植物生长调节物质在性器官形成和分化过程中的作用。

Based on new materials, author thinks that Plagiozmites may be a primitive cycads, and may does be the Procycads; Compsopteris, at least the species found in China, is not belong to the seed fern plant, but also belong to the marattiaceae plant of fern.

首次报导了斜羽叶，蕉羊齿的内部解剖特征，根据新的材料，提出斜羽叶为原始的苏铁类植物，很可能为始苏铁；蕉羊齿，至少是中国发现的一些种，不是种子蕨植物，而是真蕨类的观音座莲科植物。

Tree-fern n.large fern with an upright woody stem .

桫椤(高大的蕨类植物，茎部挺直)。

The representative families are Dryopteridaceae, Athyriaceae, Polypodiaceae, Thelypteridaceae, Selaginellaceae and Aspleniaceae. The main genera are Dryopteris, Selaginella, Asplenium, Arachniodes, Pteris, Allantodia and Plagiogyria. The top families' distribution types are cosmopolitan and pantropic ones, the main genera are pantropical ones, while species distribution type belong to the east Asia type and represents the feature of subtropics transition to warm temperated areatype. As for the order of closeness, the sequence of pteridophytes floristic relations between Songyang and the adjacent regions goes as Southwest China, South China, Central China, Japan, North China, Northwest China and Northeast China. The six upland pteridophytes next to Songyang can be put into the same natural flora because of its closest relationship. But compared with other 11 upland fern flora in China, fern in Songyang is not rich enough. There are 37 species endemic to China in Songyang.

结果表明，松阳蕨类植物共有38科72属161种7变种；优势科为鳞毛蕨科、蹄盖蕨科、水龙骨科、金星蕨科、卷柏科、铁角蕨科，优势属为鳞毛蕨属、卷柏属、铁角蕨属、复叶耳蕨属、凤尾蕨属、短肠蕨属、瘤足蕨属；科的分布以世界分布和泛热带分布为主，属的分布以泛热带分布为最多，种以东亚分布类型为主，特别是中国—日本分布类型最多，表现出亚热带向暖温带过渡的特点；本区与邻近地区蕨类植物区系关系的密切程度由大到小依次为西南、华南、华中、日本、华北、西北、东北；与邻近的6个山地蕨类植物区系的亲缘关系密切，可以划为同一自然区；与国内11山地蕨类植物区系相比，松阳的蕨类植物丰富程度不高；松阳拥有37种中国特有蕨类植物及一些珍稀蕨类植物，有较高的保护价值。

The role of the environment is very important.

的作用，环境是非常重要的。

At that time, the High Court of England and Wales Court of Queen's Bench president of William Murray, Lord Mansfield in June 22, 1772 ruling:"No matter then there is the inconvenience, but there must be a decision, I can not say that this case under the law in England are permitted or authorized; are so black should be released."

当时的英格兰及威尔士高等法院王座法庭院长William Murray， Lord Mansfield于1772年6月22日宣判：「无论有那麽不便，但总要有个决定，我不能说这件案在英格兰法律之下是准许或认可；所以黑人是应该被释放。