| Pak. J. Bot., 38(2): 225-232, 2006. | Back to Contents | ||||
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Updated: 09-07-09 | ||||
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POLLEN FLORA OF PAKISTAN -XLIX. ZYGOPHYLLACEAE ANJUM PERVEEN AND MUHAMMAD QAISER
Abstract: Pollen morphology of 14 species representing 5 genera of the family
Zygophyllaceae from Pakistan has been examined by light and Scanning
Electron Microscope. Pollen grains are usually radially symmetrical,
isopolar or apolar, 3-polycolporate or pantoporate, prolate-spheroidal
to sub-prolate or prolate often oblate-spheroidal. Sexine thinner or
thicker than nexine. Tectum generally coarsely reticulate rarely rugulate
- reticulate or foveolate to reticulate often striate. On the basis
of tectum types 4 distinct pollen types are recognized viz., Nitrartia
retusa, Peganum harmala, Tribulus terrestris and Zygophyllum
simplex. Playnological data has been useful at generic and specific
level. Department of Botany University of Karachi, Karachi-75270, Pakisan. |
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