Adil GÜNER, Vehbi ESER - optima

Posters
74
SOME RARE ENDEMIC WOODY PLANT TAXA OF TURKEY:
THE TREES
Asuman EFE, Ali KAYA
University of �stanbul, Faculty of Forestry, Department of Forest Botany, �stanbul
aefe@istanbul.edu.tr , alikaya84@gmail.com
Turkey is one of the wealthest floristic regions in the world. In l960’s, it is assumed that the
number of the species is between 3.000-5.000. Recent researches showed that there are 9.342
species and 34 % of them (3.130) are endemic. As the origin of many plants, Anatolia is very
rich and interesting in terms of endemic plant taxa.
There are about 24 Gymnospermae and more than 870 woody Angiospermae species in
Turkey. Forest vegetation covers 24.8 % of the whole country, which is about 21.188.746
million hectars. In terms of tree species, our country’s forests consist of 54.4 %
Gymnospermae, 45.6 % Angiospermae species.
Among the herbaria in Turkey a especially ISTO is the richest, the most important and the
most trustworthy resource in terms of woody plants. ISTO has wealthy collections of species
such as Pinus L., Juniperus L., Betula L., Quercus L., Acer L., Tilia L., Fraxinus L., Ulmus
L., Celtis L., Salix L., Rhamnus L., Crataegus L., Pyrus L., Sorbus L., Amygdalus L., Cerasus
Duhamel, Rosa L., Rubus L., Pistacia L., Euonymus L. etc. ISTO has 5 Gymnospermae, 24
Angiospermae of these woody taxa’s type.
This study is performed to reveal rare endemics of some woody taxa (trees). It is prepared by
using specimens at ISTO that have limited distribution area, are distributed locally and rare
endemic trees species in Turkey. Plants that have a small distribution area and weak
population are accepted as rare endemic. The photographs of rare endemic taxa’s specimens
at ISTO are taken, their characteristics are explained briefly. In addition the maps of
distribution areas are used. As a result of studies, there are 58 endemic woody (tree) taxa and
44 of them are rare in the flora of Turkey.
Keywords : Rare endemic, woody taxa, Turkey, ISTO
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