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Comparative anatomical study of some genera of Polygonaceae | ||
| Journal of Basrah Researches (Sciences) | ||
| Article 1, Volume 37, Issue 3, 2011, Pages 37-45 PDF (0 K) | ||
| Authors | ||
| K. J. Hammadi; Iman M. AL-Rubaie; A. AL-Mayah | ||
| Abstract | ||
| Detailed of anatomical study of stem and petiole of ( 3 ) species of Atraphaxis L. , ( 2 ) species of Calligonum L. , (1) spicies of Eme Neck ., (1) species of Fagopyrum Mill . , (1) species of Oxyria Hill. , ( 2 ) Species of Pteropyrum Jaub. & Spach . and ( 1 ) species of RheumL. Present in Iraq were described . The result showed that the anatomical characters of the stem such as stem outline , number of vascular bundles , size of pith , chlorenchyma , collenchyma and sclerenchyma tissues are of considerable taxonomic value at the specific or generic level and can be used for taxa separation . The number of vascular bundles of petioles appeared vaiable between 6 to 8 in most species except Pteropyrum neoanum Boiss. ex. Meisner which contain one central vascular bundle surrounded by complete ring of tanniferous cells . All the petiols of species examined have large numbers of drusses crystals except Fagopyrum esculentum Moench | ||
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