دراسة حبوب اللقاح لبعض اجناس العائلة المركبة Compositae)) في العراق

Abstract

The paper comprise comparative polynological study of species of genera belong to the family of Compositae (i.e. Chrysanthemum L,Gazinia Gaertn,Gerbera f.Gmel , Leontodon L ,Tagetes L,Zinnia L) in Iraq. Pollen grains were found to be Tricolporate. In addition, the status of the presence of thorns importance of taxonomic isolate genera .