The aim of this work is to contribute a better knowledge liverworts in the herbaria Senegal order provide basic for sustainable management. This study carried out firstly University Cheikh Anta Diop Dakar/Senegal: herbarium Herbarium Institut Fondamental d'Afrique Noire (IFAN UCAD) and DAKAR Department Plant Biology Faculty Sciences Techniques. Secondly, consultation different checklists databa...

The families within the class Mollicutes are distinguished by their morphologies, nutritional requirements, and abilities to metabolize certain compounds. Biosystematic classification of the plant-pathogenic mycoplasmalike organisms (MLOs) has been difficult because these organisms have not been cultured in vitro, and hence their nutritional requirements have not been determined nor have physio...

Pharmacological activity (e.g. antipsychotic ac­ tion [1]) and chemotaxonomic interest of xanthones may explain the increasing interest in these substances in recent years. It has been suggested [2] that Cystopteris fragilis complex is the most inter­ esting biosystematic problem in ferns. Xanthone analysis may be of interest in the study of relation­ ships of the taxa of this complex since pre...

Deciphering species relationships and hybrid origins in polyploid agamic species complexes is notoriously difficult. In this study of cheilanthoid ferns, we demonstrate increased resolving power for clarifying the origins of polyploid lineages by integrating evidence from a diverse selection of biosystematic methods. The prevalence of polyploidy, hybridization, and apomixis in ferns suggests th...