Document Type : Original Article
Authors
1 Botany Department, Faculty of Science, Ain Shams University
2 Geology Dapartment, Faculty of Science, University of Benha, Egypt
3 Botany Department, Faculty of Science, University of Ain-Shams, Egypt
4 Science Museum, Ministry of Education, Cairo, Egypt.
5 Botany Department, Faculty of Science, University of Ain-Shams, Egypt.
Abstract
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