Flora of forest vegetation of Altındere Valley (Maçka-Trabzon)

Flora of Forest Vegetation of Altindere Valley (Maçka-Trabzon) This study was done to determine the flora of Forest Vegetation of Altindere Valley (Maçka-Trabzon). The study area takes place in the Colchis sector of Euro-Siberian floristic area of the Holarctic region with regard to plant geography. 84 families, 246 genus and 383 vascular plant taxa belonging to Pteridophyta and Spermatqphyta divisions were determined in the study area. 369 Angiosperm taxa were listed according to Cronquist method, 5 Gymnosperm taxa were listed according to Davis method and the other 9 Ferns were listed systematicly according to Parris and Fraser- Jenkins methods. Floristic regions of 209 (54,56 %) taxa were able to determined in the study area. 184 (48,04 %) of these are Euro-Siberian element, 14 (3,66 %) of these are Irano-Turanian element and 11 (2,87 %) of these are Meditteranean element. 16 endemic, 7 rare plants and Osmanthus decorus (Boiss. & Bal.) Kasaphgil which is a relict species were determined in the study area. Endemic and rare plants determined in the study area were classified according to IUCN threat categories. Among these plants Erysimum deflexum Cullen being in the rocky slopes of Meryemana (Sumela) Monestry is in Endangered (EN) threat category. 10 taxa are new records for A7-Trabzon square. Key words: Flora, Forest, Trabzon, Altindere Valley