Abstracts, XIV OPTIMA Meeting, Palermo (Italy) , 9-15

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XIV OPTIMA Meeting, Palermo (Italy), 9-15 September 2013 Visualization of flora and vegetation of Afghanistan BRECKLE S.-W. 1 , HEDGE I. C. 2 , RAFIQPOOR M. D. 3 1 Dept. Ecology, Bielefeld, Germany. E-mail: sbreckle@gmx.de 2 Royal Botanic Garden of Edinburgh, Edinburgh, U.K. 3 Nees Institut für Biodiversität der Pflanzen, Bonn, Germany. Afghanistan exhibits a mediterranean but rather continental climate. The very diverse geology and geomorphology provide special conditions for a high biodiversity, even more since Afghanistan is located at the crossroad of various floristic provinces. Our project is an augmented checklist of all vascular plant species of Afghanistan. It is dealing with a comprehensive overview of the species number and endemism of the plant taxa in Afghanistan. It is the first augmented check list of the Afghan flora based mainly on the Flora Iranica as a preliminary source and many newer publications, as well as own observations. The project is partly a follow-on from the earlier Field Guide Afghanistan (Breckle & Rafiqpoor 2010. Field Guide Afghanistan- Flora and Vegetation.Bonn-Manama-New York-Florianopolis.), which visualizes about 2000 coloured photographs covering c. 1200 species of the Afghan flora. In addition, the Field Guide provides extensive chapters on all aspects of the natural history of Afghanistan. Providing both monographs to the scientific community, a more reliable answer to the question: “How many vascular plant species do we have in Afghanistan?” can be given based on the information now at hand. The inventory coverage of vascular plants in Afghanistan is, in a SWAsiatic context, rather complete. It counts about 5000 species, from which c. 25% are endemic. We use an alphabetical and tabular arrangement. This allows the taxonomist to keep his notions of relationship fluid, and makes it more user-friendly for non-specialists. This checklist includes much more information than a mere list of names. Especially distributions maps for almost each recorded taxon make the project useful for many purposes: it enables us to quickly have a better survey of species numbers in plant families and genera, as well as their geography. It may serve to indicate gaps of knowledge in some taxa or areas. It can also serve as a tool to check the nomenclatural history of naming plant species of the country, as well as many other applications. An important function of the project in future can be the use in threatened species assessments and even more for conservation management. Breckle, S.-W., Hedge, I.C., Rafiqpoor, M.D. 2013: Vascular plants of Afghanistan – an augmented checklist. c.600pp. ISBN xxx, about 150 photographs, hardcover, in preparation. 103
XIV OPTIMA Meeting, Palermo (Italy), 9-15 September 2013 Glume and lemma micromorphology of the genus Aegilops (Poaceae) in Turkey CABI E. 1 , DOĞAN M. 2 1 Namık Kemal University, Fac. of Arts and Sciences, Dept. of Biology, Tekirdağ, Turkey. E-mail: ecabi@nku.edu.tr 2 Middle East Technical Univ., Fac. of Arts and Sciences, Dept. of Biological Sciences, Ankara, Turkey. E-mail: doganm@metu.edu.tr The genus Aegilops L. consists of more than 20 species and constitutes the secondary gene pool for cultivated wheats (van Slageren, 1994; Cabi & Doğan, 2009). Species in the genus Aegilops are distributed in the South-West and Central Asia and throughout the Mediterranean basin. In Turkey the genus is represented with 17 species. Micromorphological characters of floral bracts in grasses have been used to assess systematic relationships, as well as evolutionary trends. In this study micromorphological characters of glume and lemma were studied for 13 species in the genus based on scanning electron microscopy. Samples were obtained from herbarium specimens gathered from the field as a result of revision of tribe Triticeae Dumort. in Turkey. The main objective of this study is to shed the detailed diagnostic characteristics of this genus including its glume and lemma micromorphological features. Structural features of glume and lemma epidermises were investigated, including macrohairs, prickles, shape of silica bodies, long cells and stomata. Results of the study showed that macrohairs are taxa specific, i.e. Ae. juvenalis (Thell.) Eig, Ae. crassa Boiss., Ae. vavilovii (Zhuk.) Chennav. and Ae. neglecta Req. ex Bertol. have addpresed, antrorsely pointed macrohairs up to 1mm in length. Prickles are present in all studied taxa, 150-200 μm in length. Crown cells are abundant on the glume and lemma surfaces, 40-60 μm in length. Silica bodies are elliptic, rounded, reniform and semicircular. Long cells are dominant element on the epidemises of glumes and lemmas, rectangular in shape with strongly sinuous and more or less raised walls. A detailed discussion about the value of epidermal characteristics in systematic manner is also presented. 104
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Abstracts, XIV OPTIMA Meeting, Palermo (Italy) , 9-15

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