Species-rich genera often have various conflicting circumscriptions from independent regional flora treatments. Testing the monophyly of these groups of plants is an important step toward the ...

For centuries, biologists have used taxonomy to sort living things into groups based on appearance, behavior and other perceptions of identity. They have christened plants and animals with binomials ...

To biologists, a "species" is the fundamental unit of categorization for life on Earth and a key tool for protecting living creatures. When you purchase through links on our site, we may earn an ...