查询词典 monotypic

In addition, the organogenesis of inflorescences and flowers of the monotypic genus Platycarya was investigated with scanning electron microscopy.

在对壳斗目开展大量分子系统学研究的同时，还对胡桃科化香树属Platycarya的花形态发生过程进行了详细的扫描电镜观察，讨论了胡桃科单性花的起源和演化问题。

Pollen morphology of the Chinese monotypic genus Dichotomanthes and its out-group Prinsepia utilis were investigated from the point of view of pollen development. The SEM observation revealed that there is not any change in morphology and sculpture of pollen grains from the young pollen grain seperated from callose of tetraspore to the mature pollen grain in Dichotomanthes tristaniaecarpa. Only the volume of pollen grain increased with maturity.

从发育的角度研究了中国特有单种属Dichotomanthes Kurz及与其系统学研究有关的外类群Prinsepia utilis的花粉形态，扫描电镜观察显示Dichotomanthes花粉粒自脱离四分体胼胝质膜开始至成熟二核花粉粒不同发育时期，花粉形态和外壁纹饰未见变化，仅花粉体积随成熟度增加而有所增大。

The monotypic genus Macrovalsaria previously of uncertain taxonomic position turns out to be a member of Botryosphaeriales and seems to be related to Botryosphaeria. The placement of Neopeckia and of Dothidotthia is in Dothideales and Botryosphaeriales, respectively. The genera Plowrightia and Botryosphaeria as currently defined are not monophyletic. Species of Plowrightia appear to be associated with three genera, Dothidea, Neopeckia and Sydowia; those of Botryosphaeria tested are recognized as three groups.

结果还显示，座囊菌纲中分类地位不确定的属Macrovalsaria与Botryosphaeria的关系相对接近，应该归于葡萄座腔菌目；历史上分类地位有疑问的Neopeckia和Dothidotthia两个属处于不同的目中，前者属于座囊菌目，后者为葡萄座腔菌目的成员；座囊菌目的Plowrightia属并非单系群，该属成员分别与Dothidea、Neopeckia和Sydowia三个属聚类在一起；现行的Botryosphaeria属也非单系群，其属的概念有待澄清。

Pollen morphology of three Chinese monotypic endemic genera in Gesneriaceae was studied by light microscopy and scanning electron microscopy.

对中国苦苣苔科异片苣苔属、长檐苣苔属和报春苣苔属等3个特有属中3种代表植物的花粉形态进行了光镜和扫描电镜的观察。

Recent results indicate that （1） Oryzeae is monophyletic and falls into two main clades corresponding to the traditionally recognized subtribes;（2） Close affinities of the monoecious genera are not supported, suggesting the multiple origins of unisexual florets;（3） Previous recognition of three monotypic genera （Hydrochloa, Porteresia and Prosphytochloa） is not justified;（4） Based on dating using molecular clock approach, it is estimated that Oryza and Leersia branched off from the remaining genera of Oryzeae -20 million years ago, and separated from each other -14 MYA.

目前已有的研究结果表明：稻族是单系类群，可分为两个主要分支，相当于传统的两个亚族（Zizaniinae和Oryzinae），但稻族单性花小穗是多次起源的，不宜作为划分亚族的依据；一些单型属（Hydrochloa、Porteresia和Prosphytochloa）的建立得不到分子证据的支持；根据分子钟原理估计稻族两个主要分支的分歧时间在大约2000万年前，而稻属和近缘属假稻属Leersia的分歧时间为1400万年：稻属内主要类群的分歧时间在900万年前左右。

Monotypic family of aquatic plants having narrow leaves and small flowers.

水生单子叶植物的一科具有窄小的叶子和小花。

The monotypic family Austrobaileyaceae with 2 species, is one of the systematically most isolated families.

木兰藤科含1属2种，是系统学上最孤立的科之一。

The world is a monotypic circle in different modes.

世界是个同心圆。

Bretschneidara sinensis is a monotypic species endemic in China and is classified in National Key Protected Wild Plants.

伯乐树是我国特有的单种科植物，被列为国家一级重点保护野生植物。

Species: mainly in E Asia, two monotypic genera in S America; seven genera and 37 species (25 endemic) in China.

属和约50种：主要在东亚，两单种的属在南美洲；在中国的7属和37种(25特有)。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新