Comparative midrib anatomy of Monodora Dunal. and Isolona Engl. (Annonaceae) from West-central Africa

IF 0.6 4区生物学 Q4 PLANT SCIENCES

Bangladesh Journal of Plant Taxonomy Pub Date : 2020-12-11 DOI:10.3329/bjpt.v27i2.50669

S. Adeniran, A. Kadiri, J. Olowokudejo

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引用次数: 2

Abstract

This article assessed midrib anatomical description of Isolona Dunal. And Monodora Engl. (Annonaceae) from West-Central Africa. Twelve species of tribe Monodoreae were investigated on the basis of micromorphology of midrib characters with the aid of light microscopy. The study provided important taxonomic characters which aid delineation of inter and infrageneric species within the duo genera. The generic features include centrally positioned, open collateral vascular bundle and furrow shaped midribs which are diagnostic to the genera.U shaped vascular bundles are present in most of the species with inviginating or expanded endings while marginal traces vary from 2 to 4. The presence of keel protrusion at abaxial surface established a closer affinity among M. angolensis, M. crispata, and M undulata with additional features species were delimited. Other variable useful features of midrib encountered are trichomes, parenchyma, collenchyma and sclerenchyma, and adaxial and abaxial shape. The midrib characters have been used to prepare an indented dichotomous key to delimit the species in the genera studied. Bangladesh J. Plant Taxon. 27(2): 283-291, 2020 (December)

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杜那龙的中脉解剖比较。和Isolona Engl。（番荔枝科）产于非洲中西部

本文评估了Isolona Dunal的肋骨中部解剖描述。还有莫妮多拉·恩格尔。（番荔枝科）产于非洲中西部。利用光学显微镜对12种单胞菌科植物的中脉性状进行了显微形态研究。该研究提供了重要的分类学特征，有助于描述两属中的属间和属下物种。属性特征包括中央定位、开放的侧支血管束和犁沟状的中脉，这对属性是诊断性的。U形维管束存在于大多数具有内陷或扩张末端的物种中，而边缘痕迹从2到4不等。龙骨状突起在背面的存在建立了M.angolensis、M.crispata和M.undulata之间更紧密的亲缘关系，并限定了物种的其他特征。中脉的其他可变有用特征是毛状体、薄壁组织、厚壁组织和厚壁组织，以及近轴和远轴形状。中脉特征已被用于准备一个缩进的二分键，以界定所研究属中的物种。孟加拉国植物分类学杂志。27（2）：283-29120120（12月）

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来源期刊

Bangladesh Journal of Plant Taxonomy 生物-植物科学

CiteScore

0.42

自引率

44.40%

发文量

审稿时长

6 months

期刊介绍： Bangladesh is a humid, subtropical country favouring luxuriant growth of microorganisms, fungi and plants from algae to angiosperms with rich diversity. She has the largest mangrove forest of the world in addition to diverse hilly and wetland habitats. More than a century back, foreign explorers endeavoured several floral expeditions, but little was done for non-vasculars and pteridophytes. In recent times, Bangladesh National Herbarium has been carrying out taxonomic research in Bangladesh along with few other national institutes (e.g. Department of Botany of public universities and Bangladesh Forest Research Institute).