| Pak. J. Bot., 27(1): 87-92, 1995. | Back to Contents | ||||
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POLLEN FLORA OF PAKISTAN - llI. ELATINACEAE ANJUM PERVEEN AND M. QAISER Abstract: Pollen morphology of 3 species of the genus Bergia L., from Pakistan belonging to the family Elatinaceae has been examined by light and scanning electron microscope. Pollen grains are generally radially symmetrical, isopolar, oblate - spheroidal to prolate - spheroidal, often sub-oblate, tricolporate, l.Ono-aperturate with fossulate - reticulate tectum. On the basis of shape, colpal membrane and exine pattern, 2 distinct pollen types viz., Bergia aestivosa - type and Bergia suffruticosa - type are recognized. Department of Botany, University of Karachi, Karachi 75270, Pakistan. |
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