The vascular flora of forest vegetation in Altindere Valley (Maçka-Trabzon) was investigated. The study was conducted between 2001 and 2002, during which time 1200 plant samples were collected. | Turk J Bot 32 (2008) 135-153 © TÜB‹TAK Research Article Vascular Flora of Forest Vegetation in Alt›ndere Valley (Maçka-Trabzon) Alper UZUN, Salih TERZ‹O⁄LU Karadeniz Technical University, Faculty of Forestry, Department of Forest Botany, 61080, Trabzon - TURKEY Received: Accepted: Abstract: The vascular flora of forest vegetation in Alt›ndere Valley (Maçka-Trabzon) was investigated. The study was conducted between 2001 and 2002, during which time 1200 plant samples were collected. In all, 383 vascular taxa belonging to 246 genera and 84 families were identified. The richest family was Asteraceae (35, ), followed by Lamiaceae (27, ) and Fabaceae (23, ). Additionally, the richest genus was Campanula L. (7, ), followed by Trifolium L. (6, ) and Acer L. (6, ). The phytogeographical regions of 209 () taxa were determined. The distribution of taxa within the phytogeographical regions was as follows: Euro-Siberian elements (184, ), Irano-Turanian elements (14, ), and Mediterranean elements (11, ). The number of endemic plants found was 16 (), while 7 () rare plants, whose threat categories according to IUCN were added to floristic list, were found. Key Words: Alt›ndere Valley, Flora, National Park, Trabzon, Turkey Alt›ndere Vadisi Orman Vejetasyonunun Vasküler Floras› (Maçka-Trabzon) Özet: Bu çal›flmada, Alt›ndere Vadisi (Maçka-Trabzon) orman vejetasyonunun vasküler floras› araflt›r›lm›flt›r. Çal›flma 2001 ve 2002 y›llar› aras›nda yürütülmüfl olup, bu süre içerisinde 1200 bitki materyali toplanm›flt›r. Teflhis çal›flmalar› sonucunda 84 familya ve 246 cinse ait toplam 383 vasküler bitki taksonu saptanm›flt›r. En fazla takson içeren familya Asteraceae (35; %)’dir. Bunu Lamiaceae (27; %) ve Fabaceae (23; %) izlemektedir. Ayr›ca en fazla taksona sahip cins Campanula L. (7; %) olup, bunu Trifolium L. (6; %) ve Acer L. (6; %) izlemektedir. Araflt›rma alan›ndaki 209 (%) taksonun
