Morphological Difference on Leaf Surface and Pollen Grains in Genus Artemisia

Abstract

The leaf surface of 12 Artemisia species was examined under scanning electron microscope in order to verify the posslbility of identifying the species and the affinities among them through morphological features. Roundish glandular trichomes were found on the leaf surface of A. princeps, A. montana, A. monophylla, A, keiskeana, A, absilethium, A. Genipi-Big T-shaped trichomes were observed on the vein of A. princeps 'Okinawa' line. All the species had characterlstic small T-shaped trlchomes. The examination of the pollen morphology was done for 9 Artemisia species. All the species had tricolporate pollen grains with reduced exine ornamentation belonging either to the small or medium size class. The results of the investigation suggest the possibility of using new morphological parameters for botanical classification.