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Abstract

Pollen morphology of 18 species of the family Caprifoliaceae from Pakistan has been examined by light and scanning electron microscope. Pollen grains are usually radially symmetrical, isopolar, oblate-spheroidal to prolate-spheroidal rarely sub-prolate or sub-oblate. Sexine slightly thicker or thinner than nexine. Tectum mostly spinulose to coarsely reticulate or sub-psilate often rugulate-striate. On the basis of exine pattern six distinct pollen types are recognized viz., Abelia triflora-type, Lonicera myrtillus-type, Lonicera obovata-type, Lonicera quinquelocularis, Lonicera webbiana-type and Viburnum grandiflorum.

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