PJB-2010-148
TAXONOMIC IMPLICATIONS OF POLLEN MORPHOLOGY OF SEVEN SPECIES OF RUMEX L., FROM PAKISTAN
GHAZALAH YASMIN1*, MIR AJAB KHAN1, NIGHAT SHAHEEN1, MUHAMMAD QASIM HAYAT1, SADAF ALI2 AND SHAHID ABBAS3
Abstract
Pollen morphology of 7 species belonging to the genus Rumex L., from Pakistan was examined by light microscope (LM) and scanning electron microscope (SEM). This investigation revealed the eurypalynous nature of the genus. Pollen grains usually tricolporate and tetracolporate, circular in polar view while equatorial outline was quite variable. On the basis of exine sculpturing under SEM three distinct pollen types were observed viz., Chalepensis type, Dentatus type and Acetosa type. Keys to the species and pollen types are also provided.
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