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首页> 外文期刊>Bangladesh Journal of Plant Taxonomy >Stem Anatomical Descriptors of Four Sesbania Scop. Species And Their Systematic Implication
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Stem Anatomical Descriptors of Four Sesbania Scop. Species And Their Systematic Implication

机译:四个萨斯巴尼亚SCOP的词干解剖学描述符。 物种及其系统含义

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摘要

Stem anatomical features of four Sesbania Scop. species viz. S. bispinosa (Jacq.) W. Wight, S. cannabina (Retz.) Poir., S. sesban (L.) Merr., and S. rostrata Bremek. Oberm., were examined to add some insights for identification of these species using quantitative anatomical descriptors. Sesbania stem is composed of epidermis, cortex, vascular tissues – phloem, cambium zone and xylem, and pith, which exhibit significant variations among the species in terms of their area and thickness. Sesbania sesban showed the largest area and widest epidermal cells. The close relationship between S. bispinosa and S. rostrata was found in the stem anatomical descriptors. Moreover, S. rostrata and S. cannabina were closer to some extent according to some anatomical descriptors; also rationalizing the external morphological similarities of these species. A dichotomous key of the studied Sesbania species was made. Dendrograms based on Agglomerative Hierarchical Cluster analysis of stem anatomical descriptors also confirmed close relationships identified in previous phylogenetic analyses.
机译:四个索斯巴尼亚SCOP的词干解剖特征。物种viz。 S. Bispinosa(JACQ。)W. Wight,S. Cannabina(Retz。)Poir。,S. Sesban(L.)Merr。和S. Rostrata Bremek。 Oberm。检查了使用定量解剖学描述符来添加一些见解来识别这些物种。 Sesbania茎由表皮,皮质,血管组织 - Phloem,Cambium区和木质,佩斯,并且在其面积和厚度方面表现出物种的显着变化。 Sesbania Sesban展示了最大的地区和最宽的表皮细胞。在茎解剖学描述符中发现了S.Bispinosa和S.Rostrata之间的密切关系。此外,根据一些解剖学描述符,S. Rostrata和S. Canagina在一定程度上更接近;同样合理化这些物种的外部形态相似之处。进行了学习的Sesbania物种的二分法键。基于茎解剖学描述符的附聚层间分析的树木图还证实了在前几个系统发育分析中鉴定的密切关系。

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