27 May 2005
Vol 308, Issue 5726

About The Cover

Cover image expansion

COVER A collage, based on botanical drawings of the 17th to 19th centuries, illustrating the different categories of rapid plant movement: Dionea muscipula uses a snap buckling movement to capture prey; Astromeria uses an explosive fracture to disperse its seeds ballistically; and Pharbitis nil twirls its tendrils in search of support through swelling. Also shown are formulas (see page 1308) for the physical limits of rapid plant and fungal movements. [Image: Ellen Skotheim]