Abstract 40 species and 49 taxa of the genus Iris are growing naturally in Turkey (1-3). I. spuria L. subsp. musulmanica (Fomin) Takht., is one of the the 10 species of Limniris section and grows wildly in Eastern Anatolia. Plant material was collected from Van-Ercis road. Besides the morphological and anatomical investigation; oil content and methyl esters of fatty acids of the seed oils were examined in this study for the first time. Fatty Acid methyl esters were prepared according to the method of Metcalfe et al. (13) from the oil obtained by the Soxhelet apparatus with n-hexane. Analysis of the methyl esters have been carried out with GC-MS. Myristic Acid, Palmitic Acid, Linoleic Acid, Linolenic Acid, Stearic Acid, Oleic and Arachidic Acid were determined as the main fatty acids in the oil. Seeds were rich in Linoleic (40 %) and Oleic Acid (30 %). Özet Ülkemizde Iris cinsine ait 40 tür ve 49 taksa dogal olarak yetismektedir (1-3). Limniris seksiyonunda yer alan on türden birisi olan Iris spuria L. subsp. musulmanica (Fomin) Takht. Dogu Anadolu Bölgemizde dogal olarak ve bol miktarda yetisen bir türdür. Bitki, Van-Ercis arasindan toplanmistir. Türün tohumlarinin morfolojik ve anatomik yapisi çalisilmis ayrica tohumlarin tasidigi sabit yag miktari tayin edilmistir. Elde edilen sabit yagdan Metcalfe ve ark. Yöntemi ile metil esterler hazirlanmistir (13). Yag asitlerinin metil esterleri GC-.MS ile tayin edilmis ve yagin baslica miristik asid, palmitik asid, linoleik asid, linolenik asid, stearik asid, oleik and arasidik asid tasidigi tesbit edilmistir. Tohumlarin linoleik (% 40) ve oleik asid (% 30) içerigi bakimindan zengin oldugu belirlenmistir.

Keywords: Iris spuria subsp. musulmanica, seed, morphology, anatomy, seed oil, fatty acid.