Vol. 76 No. 1 (2021)
Articles

A numerical approach to the taxonomy of some species of the Subtribe Cassiinae in Nigeria

Opeyemi Saheed Kolawole
Department of Biological Sciences, Federal University of Kashere, Gombe State, Nigeria
Abdullahi Alanamu Abdulrahaman
Wood Technology Laboratory, Department of Plant Biology, University of Ilorin, Nigeria
Emmanuel Chukwudi Chukwuma
Forest Herbarium Ibadan (FHI), Forestry Research Institute of Nigeria, Ibadan, Oyo State, Nigeria
Mahboob Adekilekun Jimoh
Department of Plant Biology, Osun State University, Osogbo, Nigeria

Published 2021-04-06

Keywords

  • Custer analysis,
  • fruits,
  • Cassiinae,
  • leaves,
  • PCA,
  • Numerical taxonomy
  • ...More
    Less

How to Cite

Kolawole, O. S., Abdulrahaman, A. A., Chukwuma, E. C., & Jimoh, M. A. (2021). A numerical approach to the taxonomy of some species of the Subtribe Cassiinae in Nigeria. Webbia, 76(1), 97–108. https://doi.org/10.36253/jopt-10036

Abstract

Twelve morphological parameters from the leaves, fruits, and pedicel of fifteen (15) species of the subtribe Cassiinae were studied using the methods of numerical taxonomy. Characters such as leaflet length, leaflet width, and leaflet length/width ratio contributed significantly in the delimitation of the species studied. While C. italica and Ch. mimosoides are the most closely related taxa, C. fistula and C. singueana appear to be the most distantly related as reflected by the cluster coefficients. Further illustrations as revealed by the dendrogram and scatter plot generated placed the 15 studied species into three groups. While we acknowledge the relevance of phylogenetic analysis in taxonomic studies as it is in recent times, we strongly support the application of numerical taxonomy to compliment findings.

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