Journal of
Medicinal Plants Research

  • Abbreviation: J. Med. Plants Res.
  • Language: English
  • ISSN: 1996-0875
  • DOI: 10.5897/JMPR
  • Start Year: 2007
  • Published Articles: 3778

Full Length Research Paper

Taxonomic utilization of anatomical characters in tribe Andropogoneae (Poaceae) based on transverse sections of leaves

Farooq Ahmad1, Mir Ajab Khan2, Mushtaq Ahmad2, Muhammad Zafar2, Muhammad Arshad1, Ameer Khan3, Ghulam Mujtaba Shah4 and Muhammad Rashid Awan5
1PMAS, Arid Agriculture University Rawalpindi Pakistan 2Department of Plant Sciences, Quaid-i-Azam University Islamabad Pakistan 3Department of Biological Sciences, University of Sargodha, Pakistan 4Department of Botany, Post Graduate College Abbotabad, Pakistan 5Department of Botany, Hazara University, Mansehra, NWFP, Pakistan
Email: [email protected], [email protected]

  •  Accepted: 28 May 2010
  •  Published: 18 July 2010

Abstract

In the present investigations, 13 species of grasses belonging to 10 genera of tribe Andropogoneae (Poaceae) were collected from salt range area of Pakistan. The purpose of the study is to identify and differentiate the grasses on the basis of leaf anatomical characters, at the specific and generic level within the tribe. Variations are observed in different characters of T.S. of leaf (presence and absence of sclerenchyma girders or strands, ribs, furrows and prickles adaxially and abaxially in different species), which are valuable in taxonomy and identification and differentiation of grasses of tribe Andropogoneae. The studies showed thatDicanthium foveolatum and Saccharum spontaneum are differentiated by anchor shaped abaxial and anchor shaped sclerenchyma girders, while the presence of large air spaces in the mesophyll of S. spontaneum and Vetiveria zizanoidesmakes them distinct from other species of the tribe. Bulliform cells in irregular and fan shaped groups and radial arrangement of chlorenchyma cells around the vascular bundles is the characteristic of all the species of the tribe, showing panicoid type of leaf with kranz type of anatomy. It is concluded that anatomical characters of leaves in tribe Andropogoneae are used as taxonomic markers at generic and specific level.

 

Key words: Taxonomic utilization, anatomical characters, tribe Andropogoneae.