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Abstract Systematic revision of 18 species belonging to genus Trigonella viz. (T. anguina, T. arabica, T. balansae, T. caerulea, T. calliceras, T. coerulescens, T. corniculata, T. cretica, T. foenum-graecum, T. grandzjlora, T. hamosa, T. maritima, T. monspeliaca, T. procumbans, T. rechingeri, T. stellata, T. strangulate, and T. suavissima) from herbarium specimens deposited in Cairo university herbarium (CAI), Menofia university herbarium (Acronym MNF) have been carried. The aim of this revision was to bring out morphological, anatomical and seeds characters using light and scanning electron microscope(SEM) and use this characters to construct key of diagnostic systematic characters and arranged it in tables, plates and microscopic photographic pictures. In addition numerical analysis was carried out to these characters to evaluate similarities and dissimilarities among the taxa under investigation. |