LEAF ANATOMICAL PROPERTIES OF SOME RARE AND ENDEMIC IRIS L. TAXA AND THEIR RELATIONS: SUBGENUS HERMODACTYLOIDES IN TURKEY

مشخصات آناتوميكي برگ هشت آرايه از جنس زنبق مقايسه و ارتباط بين آنها تعيين گرديد. گونه هاي Iris danfordiae, Iris celikii, Iris histrioides, Iris pamphylica and Iris histrio subsp. aintabensis انحصاري تركيه و گونه هاي Iris bakeriana, I. celikii, I. histrioides, I. pamphylica, I. histrio subsp. aintabensis and Iris histrio subsp. histrio داراي پراكندگي محدودي در تركيه هستند. تفاوت هايي در صفات آناتوميكي گونه ها به خصوص در لايه مزوفيل برگ مشاهده گرديد كه بر اساس آنها Iris reticulata , Iris histrioides مي بايستي به عنوان گونه هاي مستقل محسوب شوند. زير گونه هاي histrio و aintabensis مي بايستي به عنوان هم نام گونه I. histrio در نظر گرفته شوند. گونه هاي I. danfordiae و I. celikii گونه هايي مستقل باخويشاوندي نزديك هستند و I. pamphylica و I. bakeriana گونه هاي متفاوت اين زير جنس هستند.

Leaf anatomical characters of eight Iris L. taxa were compared and their relations were determined. Iris danfordiae, Iris celikii, Iris histrioides, Iris pamphylica and Iris histrio subsp. aintabensis are endemic to Turkey. Iris bakeriana, I. celikii, I. histrioides, I. pamphylica, I. histrio subsp. aintabensis and Iris histrio subsp. histrio have limited distribution in Turkey. The differences were seen especially in the mesophyl layer of the leaves. Mesophyll of I. reticulata and I. histrioides have an unifacial ensiform structure. Whereas mesophyll of the other investigated taxa have a bifacial ensiform structure. Leaf outline structure of all taxa are quadrangular structure (excluding I. bakeriana-terete structure). In mesophyll of leaves, hexagonal crystals (I. histrioides, I. danfordiae, I. bakeriana, I. histrio subsp. histrio, I. histrio subsp. aintabensis and I. pamphylica) and crystalline granules (I. reticulata, I. bakeriana, I. celikii, I. danfordiae, I. histrio subsp. histrio, I. histrio subsp. aintabensis and I. pamphylica) were found. The layer number of spongy and palisade parenchyma also vary among taxa. In the leaf anatomic characters of I. histrio subsp. histrio, I. histrio subsp. aintabensis, significant differences were not obseved. Based on the above leaves anatomical characters, we suggest that (1) I. reticulata and I. histrioides should be independent species with close relationships; (2) subsp. histrio and subsp. aintabensis should be homonym of I. histrio, rather than of its subspecies; (3) I. danfordiae and I. celikii should be independent species with close relationships; (4) I. pamphylica and I. bakeriana are different species of the subgenus.