Taxonomic study of Colchicum sobliferum (Fisch.& C.A.Mey) Stef. (Colchicaceae) in Iran with emphasis on Floristic marker and using special station method

Genus Colchicum L. belongs to Colchicaceae family including ۱۰۰ species in the world, of which fifteen taxa are distributed in Iran. Colchicum sobliferum (Fisch.& C.A.Mey) Stef. is one of the species of this genus which grows in wet grasslands in the Iran, Afghanistan and Pakistan. To determine intraspecific variations in Colchicum sobliferum from taxonomic point of view and effective ecological factors, data are collected using special station method. In this way, eight special stations are recognized for C. sobliferum in Iran. Results from floristic data analysis with R software by PCA method, led to the identification of ۳ separate groups that is indicative of the existence of intraspecific diversity. Morphometric data analysis of individual collected from each special station, by using ۴۰ quantitative and qualitative morphological characters, is made with R software by PCA and UPGMA methods, confirmed ۳ mentioned floristic groups. The ecologic data are analyzed with CCA method. Analysis of ecologic data showed that ecological factors are effective in grouping and forming special stations diversity, so that among studied factors, altitude, soil texture and slop direction factors are all effective in groupment of special stations

کلیدواژه ها:

Environmental factors ، Intraspecific diversity ، Morphological characters ، R software