Leaf Micromorphology of Some Tanacetum L. (Asteraceae) Taxa in Turkey
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In this study we have examined leaf micromorphology of eight taxa of Tanacetum L. which are distributed in Turkey. The taxa are T. balsamita L. subsp. balsamita, T. balsamita L. subsp. balsamitoides, T. argenteum subsp. flabellifolium, T. argenteum subsp. argenteum, T. argenteum subsp. canum, T. depauperatum, T. haradjanii, T. tomentellum. Although the leaf characteristic has rather limited systematic value, the combination of some of these features could be systematically relevant, especially for the identification of species. According to our findings the leaves of eight taxa are amphistomatic and covering trichomes very frequent and unicellar. Our goal is contribute to taxonomy of Tanatcetum L. which has systematic problems.