| Pak. J. Bot., 36(1): 19-24, 2004. | Back to Contents | ||||
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Updated: 09-07-09 | ||||
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POLLEN FLORA OF PAKISTAN – XXXVIII. PLANTAGINACEAE ANJUM PERVEEN AND M. QAISER
Abstract:
Pollen morphology of 14 Plantago
species of the family Plantaginaceae from Pakistan have been examined by
light and scanning electron microscope. Plantaginaceae is a
stenopalynous family. Pollen grains are generally free, radially
symmetrical, apolar, porate. Shape of pollen grains are spheroidal.
Sexine thicker or thinner than nexine. Tectum areolate or scabrare. The
pollen morphology of the family Plantaginaceae is significantly helpful
at specific level. On the basis of exine ornamentation 2 distinct pollen
types viz., Plantago - major and Plantago - ovata-type are
recognized. Department of Botany, University of Karachi, Karachi, Pakistan. |
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