If we take dioecy as an example, scientists found examples of this system in groups of plants that are not closely related. This means that dioecy has evolved several times. And this is true for the ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

THE flowers of the Epacridaceae have been described as hermaphrodite 1,2 or hermaphrodite, rarely dioecious 3, but in the latter case no examples of dioecy are quoted. The following notes concerning ...