Structural Features Of The Leaf Of Magnolia Soulangeana Soul Sheet. Bod. (Family Magnoliaceae Juss.) Growing In The Sunny And Shadow Conditions Of The Tashkent Botanical Garden

Abstract

A comparative study of the anatomical structure of the leaf of Magnolia soulangeana in sunny and shadow conditions of the Tashkent Botanical Garden was carried out and a different combination of xeromorphic and mesomorphic features was determined, which ensures adaptation to habitat conditions. Mesomorphic features: the outlines of epidermal cells are more sinuous; large, few epidermal cells with thin outer walls; large cell spongy parenchyma; non- submerged stomata; large vessels in conductive bundlespredominate in sunny and shadow habitats. Xeromorphic signs: small, numerous epidermal cells with thick outer walls; small cell spongy parenchyma; high palisade index; small vessels in conductive bundlespredominate in sunny and shadow habitats. In sunny and shadow conditions, mesomorphic characters are more prevalent in Magnolia soulangeana than xeromorphic ones, which indicates more adaptability to mesophytic habitat conditions.