Palynological and taxonomic studies of some weeds from flora of Rawalpindi
2006
Zafar, M. (Quaid-i-Azam Univ., Islamabad (Pakistan). Dept. of Plant Sciences) | Khan, M.A. (Quaid-i-Azam Univ., Islamabad (Pakistan). Dept. of Plant Sciences) | Ahmad, M. | Sultana, S.
In the present study an account was made to pollen morphology as an aid in taxonomic description of eight weeds i.e. Allium jacquemontii Regel ex Kunth, Ageratum conyzoides L., Parthenium hysterophorus L., Saussuria heteromala (D.Don) Hand.-Mazz., Sisymbrium irio L., Convolvulus arvensis L., Boerhaavia procumbens Banks in Roxb. and Tribulus terrestris L. from flora of Rawalpindi. Keeping in view the importance and application of pollen study in taxonomy, a total of 8 species belonging to 8 genera of 6 angiosperm families were investigated for detailed pollen morphology, taxonomic description and Phytogeography. Polleniferous material and complete plant specimens were properly collected, identified and utilized for studies. Pollen morphology varies among these weedy species very considerably. It was found that pollen characters i.e. shape, PIE ratio, surface of exine and morphology was considered to be important characters used as an aid in taxonomy of these weeds. It was concluded from this research that palynological data is very important not only for taxonomists but also for related disciplines of pure and applied sciences because this study provided some new dimensions towards further research in the disciplines of palynology.
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