Pollen morphology and numerical analysis of <i>Tamarix</i> L. (Tamaricaceae) in Egypt and its systematic implication

Authors

  • Ahmed Elkordy Botany & Microbiology Department, Fac. of Science, Sohag University, 82524
  • Ahmed Faried Botany & Microbiology Department, Faculty of Science, Assiut University, 71515

DOI:

https://doi.org/10.3329/bjpt.v24i1.33036

Abstract

A palynological and multivariate study of six species of Tamarix L. distributed in Egypt was carried out. Pollen morphology was examined by Light Microscope (LM) and Scanning Electron Microscope (SEM). The systematic study of these species was conducted by means of numerical analysis using UPGMA clustering and PCO analysis based on 33 morphological characters, including life form, vegetative parts, fruits, floral characters, seeds and pollen grains. Pollen grains were found to be monads, radially symmetrical, isopolar, small-sized and homocolpate. Tamarix nilotica can be easily separated from other taxa by its subprolate pollen shape. Two major clades were identified by multivariate analysis of morphological characters; one of them included three species, namely T. amplexicaulis, T. passerinoides and T. macrocarpa. Our results indicate that there is a wide range of morphological similarity among the species of section Polyadenia. The other clade included T. aphylla, T. tetragyna and T. nilotica from section Tamarix and section Oligadenia.

Keywords: Tamarix; Pollen Morphology; Numerical Taxonomy; UPGMA Cluster; PCO, Egypt.

Bangladesh J. Plant Taxon. 24(1): 91105, 2017 (June)

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Published

2017-06-25

How to Cite

Elkordy, A., & Faried, A. (2017). Pollen morphology and numerical analysis of <i>Tamarix</i> L. (Tamaricaceae) in Egypt and its systematic implication. Bangladesh Journal of Plant Taxonomy, 24(1), 91–105. https://doi.org/10.3329/bjpt.v24i1.33036

Issue

Vol. 24 No. 1 (2017)

Section

Articles

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