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.
具有黄色木质的裸子植物树木的任何一种。
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.
同时论文还将广东裸子植物种的分布区类型划分为20个亚型。
Meanwhile, the species areal-types of Guangdong Gymnospermae were divided into 20 subtypes in this paper.
同时论文还将广东裸子植物种的分布区类型划分为20个亚型。
Meanwhile the species areal -types of guangdong gymnospermae were divided into20subtypes in this paper.
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.
在数据库的统计数据基础上，我们分析了裸子植物的染色体特征。
By data collection of the database, we analyzed chromosome features of the group Gymnosperm.
提出了从裸子植物侧柏中分离纯化核糖体失活蛋白的制备和检测方法。
The preparation and detection methods of isolating and purifying a ribosome-inactivating protein (RIP) from the seeds of arborvitae were presented.
苔藓和蕨类植物，它们的媒介是水，裸子植物如松和柏，它们的媒介是风。
For mosses and ferns, the intermediary is water. For conifers like pine trees and cypresses, the intermediary is wind.
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.
CHS基因在裸子植物中的拷贝数较少，而在被子植物中拷贝数变化很大。
It has also been found that the gymnosperm plants have few copies of CHS gene in a particular nuclear genome, but copy number varies greatly in the angiosperm plants.
岩生植物按自然分类系统分为苔藓植物、蕨类植物、裸子植物、被子植物。
Rock plant, based on natural taxonomy system is classified into bryophyte, pteridophyte, gymnosperm, 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.
白垩纪中期之前，也就是说大约1亿年前，开花植物很少见：裸子植物占据着地球的景观。
Before the mid-Cretaceous, 100 million years ago or so, flowering plants were scarce: conifers and their relations ruled the landscape.
基于数据库的统计资料，我们选取了裸子植物类群对其染色体的变异和演化特征做了探讨。
Based on this database, we chose the part of gymnosperms and gave a discussion to the features of its chromosomes' evolution and variation.
与一般植物染色体的常见变异形式相反，在裸子植物中存在从高不对称性到低不对称的变异形式。
Contrary to common variation type in Angiosperms, the variation from high unsymmetric karyotype to low unsymmetric karyotype was found in existence in Gymnosperm.
古植物学重点介绍蕨类植物、裸子植物和被子植物各纲的结构和分类以及植物界的演化的阶段性。
Palaeobotany will introduce the structure and classification of Pteridophyte, Gymnosperms and Angiosperms, and introduce the evolvement phases of the Plants.
该虫寄主涉及到蕨类植物、裸子植物、双子叶植物、单子叶植物，共计109科389种(包括变种)。
The host plants of this insect include 389 species (varieties) in 109 families, and are composed of ferns plants, gymnospermae, dicotyledons and monocot crops.
而蕨类孢子和裸子植物花粉相比，可能对低熟-未熟油，特别是含非烃较高的低熟油有某种更为密切的联系。
Compared with gymnospermae pollen, the fern spore has a more closer relationship with soluble organism in the low-rank source rocks from the coal-bearing strata.
另一方面，落叶的银杏类和松柏类，以及裸子植物木化石中具有清楚的生长轮，又说明该地区的古气候存在着季节变化。
On the other hand, some deciduous gymnosperms including Ginkgoales, and the presence of growth rings in the fossil secondary wood, indicate seasonal changes.
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.
中生代，广东植物区系成分发生了很大的变化，裸子植物大量繁盛，但总体上是在本区晚古生代华夏植物区系的基础上演化而来的。
In Mesozoic, Guangdong flora had a big change, the gymnosperm was prosperous, but it was evolved from the late Paleozoic Cathaysian flora as a whole.
初步调查统计共有88科2 39种，其中蕨类植物4种，裸子植物6种，被子植物2 2 9种，这些农药植物均具有杀虫作用。
There are 239 species under 88 families, in which 4 species are pteridophyta, 6 species are gymnosperms and 229 species are angiosperms. They can kill insects.
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.
根据对海南岛及周边岛屿的考察，记载可不同程度供饲用的植物1064种，其中属低等植物的海藻类6种，蕨类植物11种，裸子植物5种，被子植物1042种。
We observed and studied the forage resources to Hainan and its neighboring islets, recorded 1064 species forage plants, of which 6 seaweeds, 11 ferns, 5 gymnosperms and 1042 angiosperms.
根据对海南岛及周边岛屿的考察，记载可不同程度供饲用的植物1064种，其中属低等植物的海藻类6种，蕨类植物11种，裸子植物5种，被子植物1042种。
We observed and studied the forage resources to Hainan and its neighboring islets, recorded 1064 species forage plants, of which 6 seaweeds, 11 ferns, 5 gymnosperms and 1042 angiosperms.
应用推荐