Pollen morphology of Achillea (Compositae-Anthemoideae) species fromPakistan
2003
Meo, A.A. | Khan, M.A.,Quaid-i-Azam Univ., Islamabad (Pakistan). Dept. ofBiological Sciences
Pollen morphology of the genus Achillea (Compositae) has been examinedfrom Pakistan by light microscope. Pollen grains are generally circular toelliptical in equatorial view, and semi-angular in polar view. Aperture istrizonocolporate. Spines are pointed with dome-shaped broad base and numberof spine rows between colpi are 4-6. Collumella is tectate and sexine is muchthicker than nexine.
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Эту запись предоставил National Agricultural Research Centre
