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PJB-1995-10
POLLEN FLORA OF PAKISTAN - llI. ELATINACEAE
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.
