Skip To Content
NSF Logo Search GraphicGuide To Programs GraphicImage Library GraphicSite Map GraphicHelp GraphicPrivacy Policy Graphic
OLPA Header Graphic
 
     
 

NSF Press Release

 


Embargoed until 2:00 P.M., EST
NSF PR 02-09 - January 30, 2002

Note About Images

Photo 1

Nuphar polysepalum, or pond lily

The flower of Nuphar polysepalum, or pond lily.
Photo Credit: Joseph Williams

Photo 2

Nuphar polysepalum, or pond lily in a lake in Colorado

Nuphar polysepalum, or pond lily, occurs throughout the northern hemisphere in cold climates, and is pictured here in a high altitude lake in Colorado, USA.
Photo Credit: Joseph Williams

Photo 3

the fusion of a sperm nucleus and a central cell nucleus

Double fertilization in Nuphar involves the fusion of sperm and egg (not shown) as well as a second fertilization event: the fusion of a sperm nucleus and a central cell nucleus as shown here.
Photo Credit: Joseph Williams

Return to Press Release NSF PR 02-09 - January 30, 2002

 

 
 
     
 

 
National Science Foundation
Office of Legislative and Public Affairs
4201 Wilson Boulevard
Arlington, Virginia 22230, USA
Tel: 703-292-8070
FIRS: 800-877-8339 | TDD: 703-292-5090
 

NSF Logo Graphic