The diandrous willows, especially arctic species, are often weakly entomophilous. 4. The bract does not subtend the flower, an axial structure on the catkin, but is a leaf upon the pedicel of a ...

Someone has to provide the entertainment. This film introduces the anatomy of the flower, including the receptacle, sepals, nectaries, carpel, stigma, style, ovary, stamen and petals. By ...

Insect-pollination of flowering plants is responsible for the majority of the world’s flowering diversity and is an essential part of plant reproduction. Flowers have bright colours, smells and ...

But in 1998, this ancient plant discovered in the fossil beds of Liaoning Province in northeastern China graced the cover of Science and made headlines worldwide. It was heralded as the earliest ...