مطالعه آناتومي پياز گونه هاي لاله (Tulipa) ايران

Anatomy of the bulbs of Tulipa L. species (Liliaceae) from Iran

Tulipa L. genus from Liliaceae family has about 100 species, from which 19 reported from Iran. In this work, anatomy of the bulbs of fourteen Tulipa species belonging to the two subgenera: Eriostemones (T. biebersteiniana, T. biflora, T. turcomanica, T. humilis) and Tulipa (T. clusiana, T. montana var. montana, T. montana var. chrysantha, T. systole, T. hoogiana, T. kuschkensis, T. micheliana, T. ulophylla, T. schrenkii, T. lehmanniana) were studied. Species from subgenus Eriostemones were distinct from each other based on the shape and distribution of their bulbs hairs. Species from Tulipa also were different in the position and density of the bulb hairs. There were not clear differences in the epidermal cells of the bulbs of the species. However, there was a distinct difference between the epidermal cells of two varieties of T. montana. The results of this study indicated that the anatomical features of the Tulipa bulbs in the two subgenera could not be used as a diagnostic character, but can be of value at sectional and species levels. It seemed that the presence and the density of the hairs in the bulbs of Tulipa was correlated to the ecological conditions of their habitats.