Anatomical Study of Petiole and Leaf Parts of Gossipum Hirsutum L.in Erbil / Iraq

The plant Gossypium Hirsutum genotypes were grown in Qwshtapa district, Grdmala village, which is 30 kilometres from the centre of Erbil, Iraq. cotton there included Coker 310, Lachata (Iraqi genotypes), Cafko, Dunn 1047, Montana, Stone Ville (USA Bakhtegon, Khdorda, and Vanamin (Iranian genotypes). anatomical investigation demonstrates distinct petioles, midribs, laminas, margin outline shapes among genotypes. They contain secretory tissues, cluster crystals, tannins. While some lack trichomes, others have; these are multicellular glandular unicellular branching or unbranched nonglandula.