| Pak. J. Bot., 39(1): 1-7, 2007. | Back to Contents | ||||
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Updated: 09-07-09 | ||||
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POLLEN FLORA OF PAKISTAN-MALVACEAE-GREWIOIDEAE-LII ANJUM PERVEEN AND MUHAMMAD QAISER Abstract: Pollen morphology of 12 species distributed in 3 genera viz., Corchorus,
Grewia and Triumfetta were examined by light microscope (LM)
and scanning electron microscope (SEM). Pollen grains generally tricolporate, prolate, sexine thicker or thinner than nexine. Exine ornamentation
reticulate or rugulate to reticulate often rugulate. On the basis of
exine pattern three pollen types are recognized viz., 1) Corchorus
aestuans-type, 2) Corchorus depressus type, 3) Corchorus
tridens-type. Department of Botany, University of Karachi, Karachi-75270, Pakistan. |
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