A new study reveals how a remarkable group of plants on the Galápagos Islands developed their diverse leaf shapes—offering unique insight into evolution at the genetic level. A large international ...

UNDER a cumbersome title, we have here a half-dozen short papers containing elementary descriptions of the parts of a few common flowers and their functions. The object of the author has been “to help ...

Plants in the genus Scalesia have evolved adaptive traits multiple times, but not always using the same genes. The photo shows the serrated leaves of Scalesia affinis (radiate-headed scalesia). The ...