Achillea L. genusuna ait bazı türlerin anatomik ve fizyolojik özellikleri üzerinde araştırmalar

-38- \l- ÖZET Bu çalışmamızda ülkemizde ve dünya da yayılış gösteren ve tıbbi değer taşıdıkları genellikle kabul edilen Asteraceae (Campositae ) familyası üyesi Achillea L. genusunun A. millefolium L., A. multifida (DC) Boiss., A. f ilipendulina Lam., A.

SUMMARY Five species Df Achillea L. genus were observed by comparing according to the anatomical structure of their roots, stems and leaves. It uas determinated that these five species (A. millefolium L., A.multifida (DC) Boiss., A.f ilipendulina Lam., A.clypeolata 5m. in Sibth.and Sm., A.asplenif olia Went.) have a large anatomic similarity with each other. The folloujing are the results of the comparison; xylem in the root is four armed (tetra arc), phloem is surrounded by sclerenchymatic particles in the root and stem crosscut. The leaves have an equifasial structure. It uas determined that the highest degree of germination has been observed in nine hours of lighting in achenes of these species. It was also observed that these species exhibit a high degree of salt sensivity. Anatomical and physiological studies together wtih soil analysis of the samples supporting these plants have also been carried out.