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菖蒲属

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Leaves laterally flattened, basally equitant, sword-shaped; bracteole cupular; pedicel glabrous; anthers ovate, with 2 separate locules

叶侧面使变平,基部套折,剑形;小苞片杯状;花梗无毛花药卵形,具分开子房室 1 Tofieldia 岩菖蒲属

Secondly, according to the stem and leaf anatomy, leaf epidermis, pollen morphology and floral development, it is found that there are no close relations between Acorus and Typhales, especially in the aspect of floral development. In the course of floral development of A. calamus, neither bracteloe primordium nor common primordium occurs in the whole course. Early development of the flower is strongly unidirectional. Three shield carpels develop into a pistil. In Sparganium fallax, each female flower has a bracteole. The bracteole primordium and the floral primordium originate from a complex structure. A single saccate carpel develops into a pistil. In staminate flowers, petal and stamen primordia initiate spirally.

菖蒲属与香蒲目的茎叶解剖特征、叶表皮特征、花粉特征及花器官发生特点等亦存在着明显区别,特别是花器官发生特点差异尤为显著,如菖蒲属花器官发生过程中,没有苞片原基,也不存在任何形式的复合原基,花被与雄蕊原基均以单向性方式发生,雌蕊由3心皮发育而成,具有"盾状心皮"的特点等,黑三棱属则有苞片原基发生,且苞片原基与雌花原基起源于共同的复合结构,雄花的花被原基和雄蕊原基均以螺旋状方式发生,雌蕊由单心皮发育而成,未发现有2或3个心皮原基或其痕迹的现象,体现出"囊状心皮"的特点。

Any of numerous plants of the genus Gladiolus, native chiefly to tropical and southern Africa and having sword-shaped leaves and showy, variously colored,''.

唐菖蒲,剑兰一种菖蒲属植物,原产于非洲的热带地区和南部地区,有剑形的叶子和成单面穗状花序的颜色艳丽、''。

A plant of the genus Tofieldia having linear chiefly basal leaves and small spicate flowers.

菖蒲属的一种植物,具有线形的基生叶和小的穗状花。

Thirdly, it is possible that Acorus is in an isolated, primitive position among the monocotyledon. The systematic position of Acorus among the angiosperms deserves to be studied deeply.

菖蒲属可能是整个单子叶植物中一个较孤立的、原始的类群,它在整个被子植物中的系统地位,目前尚无定论,还有特深入探讨。

The results of this study supported removing Acorus from Araceae as a singular family and as the basal and relative isolation of the monocotyledon.

据此认为菖蒲属应从天南星科中分出并单独成科:同时支持菖蒲属位于单子叶植物基部较孤立的系统地位。

The controversy about the classification and systematic position of Acorus L. has lasted for about two century.

菖蒲属的分类和系统地位近两个世纪以来一直存在较大的争议。

The studies support the viewpoint that Acorus should be removed from Araceae to an independent family.

支持并重新提出了菖蒲属从传统的天南星科中分离出来并独立成科的学术观点。2。

Firstly, it is found that there are many obvious differences between Acorus and Araceae. Their differences are based on many aspects which include characteristics of morphology, anatomy and epidermis of leaf, types of tapetum in anther walls , patterns of endothecial thickenings, and ways of development of endosperms, presence or absence of perisperm, components of photochemistry, and sequences of rbcL.

研究表明:1。菖蒲属与天南星科其它属在叶的形态、结构、表面特征,花药绒毡层类型,药室内壁增厚的特点,胚乳的发育方式,外胚乳的有无,植物化学成分,rbcL基因序列等多方面存在着显著的差异。

Secondly, according to the stem and leaf anatomy, leaf epidermis, pollen morphology and floral development, it is found that there are no close relations between Acorus and Typhales, especially in the aspect of floral development. In the course of floral development of A. calamus, neither bracteloe primordium nor common primordium occurs in the whole course. Early development of the flower is strongly unidirectional. Three shield carpels develop into a pistil. In Sparganium fallax, each female flower has a bracteole. The bracteole primordium and the floral primordium originate from a complex structure. A single saccate carpel develops into a pistil. In staminate flowers, petal and stamen primordia initiate spirally.

菖蒲属与香蒲目的茎叶解剖特征、叶表皮特征、花粉特征及花器官发生特点等亦存在着明显区别,特别是花器官发生特点差异尤为显著,如菖蒲属花器官发生过程中,没有苞片原基,也不存在任何形式的复合原基,花被与雄蕊原基均以单向性方式发生,雌蕊由3心皮发育而成,具有&盾状心皮&的特点等,黑三棱属则有苞片原基发生,且苞片原基与雌花原基起源于共同的复合结构,雄花的花被原基和雄蕊原基均以螺旋状方式发生,雌蕊由单心皮发育而成,未发现有2或3个心皮原基或其痕迹的现象,体现出&囊状心皮&的特点。

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