被子植物的种子被另一层覆盖物包裹着。
In the angiosperm the seeds are wrapped in an additional layer of covering.
草是被子植物的简单形态，种子被包裹在长茎上。
Grasses are simple forms of angiosperms that bear their encapsulated seeds on long stalks.
被子植物的双受精过程及其意义？
Describe the process and significance of double fertilization.
被子植物的花由花分生组织(又称花原基)形成。
In angiosperms, after the floral transition, the inflorescence meristem produces floral meristems (FMs).
据报道，在被子植物的约31个科中有异型花柱植物。
Heterostyly has been reported in 31 families of angiosperms.
大多数被子植物的胚珠有两层珠被，而裸子植物通常只有一层。
Most angiosperm ovules possess two integuments, while gymnosperms usually have only one.
《被子植物的风媒进化》——生态学及进化论趋势17：361 - 369。
"The evolution of wind pollination in angiosperms." Trends in Ecology and evolution 17:361-369.
最新的分子系统发育研究显示，腺齿木科是现存被子植物的重要基部类群之一。
Recent phylogenetic analyses of multiple molecular data sets indicate that Trimeniaceae is one of the basal taxa of the extant angiosperms.
虻类化石中的许多类群都有访花习性，它们为研究被子植物的起源提供了独特材料。
The fossil Brachycera contain a wider variety of flower visitors, which provide unique material for studying the origin of angiosperms.
实验内容为人教社出版，中师《生物学》教材第一册第二章“被子植物的形态和生理”。
The experimental content is "Morphology and Physiology of Angiospermae" , which is in the textbook of biology for the secondary normal school, published by people's education press.
从起源上看， 被子植物的古特有属主要发生于晚白垩纪和早第三纪，地质历史上大都占有广阔的分布区；
The relic genera once occupied huge areas in North Hemisphere in the Tertiary or the late Cretaceous, while neo-endemism was mostly originated in the late Tertiary .
将蕨类植物、裸子植物、被子植物的32个科的5 0种植物所含的黄酮类化合物列举出来，可以作为进一步开发药用价值以及进行植物分类的依据。
The flavonoids in 50 plants of 32 families of Pteridophyta?Gymnospermee and Angiosperm were listed. This work could provide the evidences of developing clinic function and plant division.
其中Berendse, F. and Scheffer, M. 2009年对相关假设作了一个精巧的摘编，见《重温被子植物的发散，针对达尔文糟糕透顶的神秘轮生态学解析》——生态学通讯12: 865-872.
“The angiosperm radiation revisited, an ecological explanation for Darwin’s abominable mystery.” Ecology Letters 12: 865-872.
在很短的时间内，被子植物就覆盖了夏威夷许多原本光秃秃的土地。
In a surprisingly short time, angiosperms filled many of the land areas on Hawaii that had been bare.
被子植物是种子植物的一种类型，包含了所有开花植物的类型。
One type of seed-bearing plant, the angiosperm, includes all forms of blooming vegetation.
《无生命授粉：虫媒传粉的被子植物逃亡性进化》——英国伦敦皇家学会哲学学报 333: 217-224.
“Abiotic pollination: an evolutionary escape for animal-pollinated angiosperms.” Philosophical Transactions of the Royal Society of London B 333: 217-224.
《有关被子植物之前的授粉方式的推断：欧亚长吻蝎蛉》——科学 326: 840-847及Ollerton,J.和Coulthard,E. 2009.
“A probable pollination mode before angiosperms: Eurasian long-proboscid scorpionflies.” Science 326: 840-847 and Ollerton, J. and Coulthard, E. 2009.
裸子植物的雌配子体简化，但较被子植物体的体积大，不能自养。
The female gametophyte is reduced but larger than in angiosperms; it is not autotroph ic.
裸子植物的雌配子体简化，但较被子植物体的体积大，不能自养。
The female gametophyte is reduced but larger than in angiosperms; it is not autotrophic.
本文综述了被子植物多胚苗的研究进展。
Advance in polyembryonic seedling (PS) in angiosperms is summarized in the paper.
对辽宁西部晚侏罗世义县组中的孢粉植物群进行了系统研究，首次发现了目前为止世界上最古老的被子植物花粉化石。
This paper reports fossil pollen collected recently from the Upper Jurassic Yixian Formation of western Liaoning Province, and first demonstrates the oldest known angiospermous pollen in the world.
玉米的生活史是被子植物中比较典型的。
记忆它们的是被子植物和裸子植物等胚种。
What recorded them were embryos of angiosperm and gymnosperm.
花丝：1。被子植物中，雄蕊支撑花药的柄。
Filament 1. The stalk of the stamen bearing the anther in angiosperms.
现代裸子植物，诸如蕨类植物和银杏，和被子植物相比明显的非常没有营养和粗硬。
Modern gymnosperms such as ferns and gingko are typically not very nutritious and are tougher to chew than angiosperms.
多倍体是高等植物染色体进化的一个显著特征，约70 %的被子植物在其进化过程中曾经历过一次或多次多倍化事件。
Polyploid is a remarkable characteristic in the chromosome evolution of higher plant, and about 70% of angiosperms have experienced polyploidization once or more in their evolutionary history.
分析了用于推测被子植物起源时间的分子、化石和地理分布证据。
The evidence from molecular clocks, fossils and geographic distribution data on the origin time of angiosperms has been greatly accumulated in the past two decades.
他还观察到裸子植物的胚珠并不是被子房壁包围，这个发现直接导致了被子植物和裸子植物之间最根本的几点区别的建立。
He also observed that gymnosperm ovules were not enclosed in an ovary wall, leading to the establishment of one of the basic differences between angiosperms and gymnosperms.
高山花卉马先蒿是被子植物中最大的一个属，我国拥有332～400余种。
Pedicularis L. , as one of the largest genera of angiosperm, comprises about 332-400 species in China.
也许被子植物适应优势的秘诀就在于它们有能力形成每单位重量的木材可支付少得多的能。
Perhaps a key adaptive advantage of the angiosperm is their ability to construct wood with much less expenditure of energy per unit weight.
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