兰科植物

Orchidaceae is one of the largest families of monocot plants.

兰科植物为单子叶植物中最大的一个科。

Plant of the orchid family because commercial value is high and those who cause hill civilian and lover is excessive collect with manage, the one; that makes the main reason that orchid species is in severe danger on the other hand, because factitious development is a mountainous area, if give birth to the fell trees of selva to wait formerly, the destruction that causes zoology environment; is belonged to plus plant of the orchid family, planted distributinging belt is narrow, reach its oneself is progenitive and not easy, to living the environment asks to compare other plant slashing, make it becomes world biology to protect one of centers that organize an attention.

兰科植物由于商业价值高而引起山民和爱好者的过度采集与经营，成为兰花物种濒危的主要原因之一；另一方面，由于人为的开发山区，如原生热带雨林的砍伐等，引起生态环境的破坏；再加上兰科植物属、种的分布带狭窄，及其自身繁殖不易，对生存环境要求比其他植物苛刻，就使它成为世界生物保护组织注重的中心之一。

The recent advances in the taxonomy of orchidaceous mycorrhizal fungi and diversities of fungal resources were reviewed, and morphology of orchid mycorrhizae as well as their effects on orchid plants were discussed.

对兰科菌根真菌的分类及真菌资源多样性、兰科菌根的形态和菌根对兰科植物的效应等最新研究进展进行了综述。

The wild orchidaceous plants were mostly distributing under sidehill trees, beside hollow rivulet or on trees at 400~1300 meters altitudes of north coteau of in the area.

其中，陆生兰13属，21种，附生兰10属，20种，属本地区珍稀濒危植物，亟待保护的有17属29种。本区兰科植物主要分布在北部山区，海拔400~1300m的山坡林下、山谷溪旁和树上。

51 Orchidaceous species discovered by way of investigation fall into 32 genuses with 41 sedentary plants, 7 adnascent plants and 3 saprophyte plants. Sedentary plants distribute in the communities are composed of panacea, fagaceae, rosaceae, ericaceae plants with life form geophytes.

在调查中出现的32属51种兰科植物中有41种地生兰、7种附生兰和3种腐生兰，地生兰中以兰属植物中的春兰、蕙兰分布最广，生长在松科、山毛榉科、蔷薇科、杜鹃科等构成的植物群落中，生活型为真地下芽植物。

Floricultural Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640） 2（College of Life Sciences, South China Agricultural University, Guangzhou 510640）Abstract Orchidaceae is one of the largest families of flowering plants.

兰科植物是开花植物中最大的家族之一，分子标记技术应用于兰科植物的分类鉴定和品种鉴别，为兰花的分类提供了分子水平的证据，也为兰花保护策略和措施的制定提供了理论基础。

Monorchis belonging to Orchidaceae had a narrower one, indicating that rare and endangered Orchidaceae plants had a less distribution in Beijing mountainous region, and only distributed in several types of forest vegetation communities. Due to the lack of suitable habits, these herbage species were in dire need of prior conservation.

结果表明：野大豆的生态位宽度值较大，为0.297；大花杓兰、沼兰和角盘兰同属于兰科植物，生态位宽度值较小，说明兰科植物在北京地区分布较少，并且仅在几种森林群落类型中有分布，适宜生存的生境较少，急需优先保护。

The article reviewed the achievements of resources investigation on wild orchidaceae in the recent years,introduced research status of resources inverstigation on wild orchids,and analyzed the main problems existing in the wild orchidaceae resources investigation.

现综述近年来国内在兰科植物野生资源调查方面的研究成果，介绍了国内在野生兰科花卉资源调查方面的研究现状，分析了国内在野生兰科花卉资源调查方面存在的主要问题并提出了相关建议。

Like most monocots, orchids generally have simple leaves with parallel veins, although some Vanilloideae have a reticulate venation.

就如同大部分的单子叶植物，兰科植物通常具有有平行脉的单叶，尽管一些香荚兰亚科植物具有网状叶脉。

The recent studies showed that most orchid mycorrhizae belong to Basidiomycota and Deuteromycotina fungi, and some belong to Ascomycota. There are two modes for the formation of orchid mycorrhizae, one is the infection of orchid seeds and the other is the infection of orchid radicles.

目前研究已知，感染兰科植物根部并能与之共生的真菌绝大多数属于担子菌门和半知菌门，也有部分属于子囊菌门；兰科菌根的形成可分为两种情况：一是对兰科植物种子的侵染；二是对成长新根的侵染。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。