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POLLEN FLORA OF PAKISTAN-XLIII. LYTHRACEAE

ANJUM PERVEEN AND MOHAMMAD QAISER

Abstract: Pollen morphology of 7 species representing 5 genera of the family Lythraceae from Pakistan have been examined by light and scanning electron microscope. Lythraceae is an eurypalynous family. Pollen grains are generally free, radially symmetrical, isopolar, colporate or heterocolpate. Shape of pollen grains are sub-prolate or prolate often oblate-spheroidal. Sexine thicker or as thick as nexine. Tectum reticulate rugulate or scabrate to sub-psilate. The pollen morphology of the family Lythraceae is significantly helpful at generic and specific level. On the basis of apertural types 2 distinct pollen types viz., Lagerstroemia indica - type and Ammannia baccifera- type are recognized.
 

Department of Botany, University of Karachi, Karachi-75270, Pakistan.