التجهيز الوعائي لأوراق و ساق النوع Galium aparine L.

Abstract EN

The research is an anatomical study for the stem and leaves of Galium aparine L.The nodal anatomy was carefully investigated ,by the cross sections at the node provide that what was called "cyclic arrangement" of leaves is in fact includes just two opposite leaves which take their vascularization from the stele by two leaf traces.The rest four leaf- like appendages on the node are stipules ,and take their vascularization from the vascular ring which bond the two opposite leaves,and refered for some morphological and anatomical characters of the plant species in this work.