Achene anatomy and stomatal characteristics of eighteen Crepis L. (Asteraceae) taxa from Turkey with notes on their systematic significance
2 May 2018Inceer, Huseyin; Aksu Kalmuk, Nursen; Imamoglu, Kemal ; Arslan, Gokhan; Duman, Ozge; Hayirlioglu-Ayaz, Sema; Guner, Gul
In this study, achene anatomy and stomatal characteristics of eighteen Crepis taxa from Turkey were described here for the first time. Pericarp in all taxa examined is mainly composed of several layers of sclerenchymatous and parenchymatous cells. In the achene, the differences mainly concern the pericarp structure as well as its thickness and width. Stomata are present on both surface of the leaf in the studied taxa and all taxa have anomocytic type stomata. The dimension (length and width) and density of the stomata significantly differ in the studied taxa. In addition, the dimension of stomata is negatively correlated with stomata density. It is concluded that achene anatomy and stomatal characteristics are useful for delimitation of the Crepis taxa.