摘要：The polleniferous material of Prunus subg amygdalus taxa growing in Iraq was collected. Samples were tested using scanning electron and light microscope. Taxa are symmetric, isopolar, monad, colporate, and trizonocolpate. The main exine sculpture is striate with or without micro-perforations. Tetracolporates are present in P. dulcis, P. persica, and P. carduchorum var. glabra, absent from all other taxa. Among pollen grain characters, shape is very useful for separating taxa at the specific level. Pollen grains of all taxa are of small rank but on average pollens of P. argentea var. argentea are the smallest, and of P. argentea var. elaeagnifolia are the largest of all. Principal component analysis and discriminant analysis can recogniz77.976% and 70.98% of the total variability respectively, thus can help prediction of taxa.
关键词：Prunus subg amygdalus;Prunus longispenosa;Prunus argentea var. argentea;olporate;P. argentea var. elaeagnifolia;pollen morphology
