The study was accomplished in pure and mixed stands of Quercus castaneifolia and Quercus macranthera in northern Iran. collection of the sample and study of the ecological factors including the seasons, spring, summer and autumn of the years 2009 and 2010 was conducted and the scientific name of the species, life forms and Chorology were recorded using the available resources. 186 species have been identified of 6 Pteridophytes families, 2 families from Gymnosperms and 52 families of Angiosperms (8 families from a Dicotyledone and 44 families of Monocotyledon). The maximum number of species was related to the flowing family: Asteraceae, Papilionaceae, Lamiaceae, Orchidaceae and Poaceae. Raunkiaer’s classification of Hemicryptophytes 49%, Cryptophytes 20%, Phanerophytes 19%, and 8% Therophytes, Chamaephytes 3 percent and 1 percent of Epiphytic species are allocated to the region. Chorology study area showed the highest value in zone of Europe-Siberia (the Caspian), with 41% belonging. The study of the list of endangered species showed one endangered species, 5 vulnerable species. 20 species were identified as lower risk. Lilium ledebourii was identified as a rare species with relatively wide distribution in different parts of the region.
Article Source: Volume 4, Number 6, March 2014 – IJB