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.
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.
玉米的生活史是被子植物中比较典型的。
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.
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.
莲植物是被子植物中起源最早的种属之一。
Lotus plant is the origin in angiosperm is the earliest kind belong to one of.
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.
被子植物开始时是浸沉在液体中的游离合子。
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.
被子植物中单子叶植物475种，双子叶植物567种。
In angiosperms there are 475 species of monocotyledon and 567 species of dicotyledon.
被子植物雌、雄配子体的形成是世代交替的关键过程之一。
Angiosperm female and male gametophyte formation is the key to the process of generational one.
关于被子植物多胚苗的发生机理目前还没形成统一的定论。
However, affirmative conclusion about the mechanism of producing the PS material in angiosperms is not still formed and obtained.
其中真菌和蕨类各1种、裸子植物5种、被子植物153种。
They include one fungus, one fern, 5 gymnosperms and 153 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.
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.
《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.
兰科是被子植物最大科之一，兰科植物具有巨大的观赏价值和经济价值。
Orchidaceae is one of the largest families of angiosperms which has tremendous ornamental and economic value.
该类基因具有特征性基元，并存在于蕨类植物、裸子植物和被子植物中。
These genes are characterized by several distinct motifs and exist in ferns, gymnosperms, and angiosperms.
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.
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.
二裂片敏感性柱头的生物学特性及意义近年来一直是被子植物研究中的热点问题。
The biologic characteristic of the bilobed sensitive stigma is the hot question on the flowering plants research.
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.
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.
本文研究了云南保山地区上新世羊邑组和芒棒组的四种被子植物化石的表皮微细构造。
The cuticular microstructures of four angiosperm fossil plants from the Pliocene Mangbang Formation and the Yangyi Formation in Baoshan, Yunnan Province were studied in this paper.
花，作为被子植物独有的繁殖器官，被认为是被子植物植物体形态上最复杂的一部分。
Flower, as the special reproductive organ of the Angiosperms, are believed to be morphologically the most complicated parts 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.
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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