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    Anatomy, morphology, palynology and antimicrobial activity of Amsonia orientalis Decne. (Apocynaceae) growing in Turkey
    (2006) Akyalçin, Hanife; Özen, Fazil; Dülger, Başaran
    In this study, anatomy, morphology, palynology and antimicrobial activity of Amsonia orientalis Decne., which is distributed only three localities in Turkey and evaluated as critically endangered according to IUCN categories, have been investigated. Leaf and stem sections were investigated anatomically. The leaf has a thick cuticula layer. The inflorecense, the leaf and floral morphology were studied morphologically. The inflorescence is corymbose, leaves have an alternate order and almost without petiols. The pollen grains are trizonoporate and the ornamentation is psilate. Leaves are glabrous except for margin and midrib, pubescent when young. The extras obtained from the plant have strong antimicrobial activity against the tested microorganism used in this study. © 2006 Asian Network for Scientific Information.