Turkish Journal of Agriculture and Forestry




Some of the Turkish Rhododendron L. taxa need wood anatomical and palynological studies for their certain determination together with morphological studies. Therefore, some of them were studied and a revised list of them is given. New distribution areas of a newly recorded endemic variety of Rhododendron ponticum L. (Rhododendron ponticum L. subsp. ponticum var. heterophyllum Anşin) were determined: A7 Trabzon: Maçka, A8 Rize: Çamlıhemşin and A8 Artvin: Murgul, in addition to the already known A8 Trabzon: Of region. Morphological, wood anatomical and palynological features of very rare white-flowered specimens of Rhododendron ponticum L. were compared to the main taxa of Rhododendron ponticum L., with purplish-pink flowers, and Rhododendron x sochadzeae Charadze & Davlianidze, which has nearly the same colored flowers and a hairy ovary. The specimens of Rhododendron ponticum L.with white flower and a naked ovary, collected from Turkey, were studied for the first time from anatomical and palynological points of view and were determined to be a natural form of Rhododendron ponticum L. (Rhododendron ponticum L. subsp. ponticum forma album (Sweet.) Zab.).


Wood Anatomy, Morphology, Palinology, Turkish Rhododendron, Ericaceae

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