Investigation of the taxonomy of species Astragalus tigridis and Astragalus scabrifolius

In this study, the section Proselius Bunge. belong to genus Astragalus L. of Astragalus tigridis and Astragalus scabrifolius species which are grown in Elazığ were evaluated by means of morphological, karyological, anatomical and palynological data. In the anatomical studies the anatomies of leaflet and root of taxa were examined. The structures of roots, leaves and flowers the plant samples that were collected belong to these species were investigated within the framework of morphological studies. Seeds of the examined species were benefited for chromosome studies. In consequence of the studies performed in divisible somatic cells, chromosome counts and karyotype analyses of species were done and idyograms were generated. The chromosome number of A.tigridis and A. scabrifolius are found to be 2n=16. It is confirmed that the chromosomes are median region (m) and submedian (sm) centromeres. The shape of the pollens of all A. tigridis and A.scabrifolius species studied were determined as isopolar, their types of aperture were trizonocolporate, their shapes of Amb were semiangular and ornementation were microreticulate. Key Words: Astragalus L., Fabaceae, Morphology, Anatomy, Karyology, Palynology