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Celep, Ferhat/0000-0003-3280-8373 WOS: 000278743300005 This study presents investigations on the morphology, ecology and palynology of Sempervivum sosnowskyi Ter-Chatsch. For morphological studies, a detailed description of S. sosnowskyi is given. In addition, diagnostic morphological characters of similar species (S. armenum and S. glabrifolium) are discussed. The species, known as Georgian endemic, is reported for the first time from Turkey. It is restricted to Artvin region in Northeast Anatolia where it grows on metamorphic rocks and moist subalpine steppe. Notes are also presented on its ecology and conservation status. Pollen micromorphology of S. sosnowskyi and the other species is presented using light (LM) and Scanning Electron Microscopy (SEM). A diagnostic key and a new distribution map of the species are also given. Sibbald Trust; Turkish Scientific and Technical Research Council (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [1747] Many thanks to the Sibbald Trust (Royal Botanic Garden Edinburgh-RBGE) for financial support during Dr. Fergan Karaer visit to Edinburgh in 2004-2005 and directors and curators of the ANK, BM, E, GAZI, HUB, ISTE, K and OMUB for study facilities. We wish to express our sincere thanks Prof. Dr. Nur Munevver Pinar and other staff at the Ankara University for providing palynological data. Plant specimens were collected during the The Sempervivum revision project (Project no. 1747), which are funded by Turkish Scientific and Technical Research Council (TUBITAK). We wish to thanks to editors and anonymous reviewers for their constructive criticisms. |