PJB-2010-1
POLLEN FLORA OF PAKISTAN–LXV. BERBERIDACEAE
ANJUM PERVEEN AND MUHAMMAD QAISER1
Abstract
Pollen morphology of 12 species representing 2 genera of the family Berberidaceae from Pakistan has been examined by light and scanning electron microscope. Pollen grains usually radially symmetrical, isopolar or apolar, spheroidal or sub-prolate.Spiroaperturate rarely colpate (3-more), sexine thicker than nexine. Tectal surface mostly foveolate-fossulate or sub-psilate, often rugulate - reticulate. On the basis of apertutal types and exine ornamentation four distinct pollen types are recognized, viz., Berberis calliobotrys-type, Berberis jaeschkeana-type, Berberis kunawurensis-type and Epimedium elatum-type.
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