geographical, morphological and taxonomic status of pistacia khinjuk stocks ex stocks in iran*

geographical, morphological and taxonomic status of pistacia khinjuk stocks ex stocks in iranwas revised. a total of 181 accessions (herbarium materials or specifically collected for this study) wereexamined geographically and morphologically. the chromosome number of 2n = 24, revealed among 15accessions studied, was taken as evidence to lump the variability observed in p. khinjuk as one taxonomicspecies. however the states of the leaflet number, i.e. 1 (rarely 3) and 3-7 were taken as the key character in order to subdivide the p. khinjuk material in iran into two varieties: khinjuk (the autonym variety) with 3-7and populifolia boiss. with 1 (rarely 3) leaflet in number. the relative illustrations are prepared andpresented. some nomenclatural corrections are also included.