99559A

99559A
Caption: Ragweed (Ambrosia psilostachya) pollen. This pollen is an allergen. Note its sharp pollen wall extensions.
Magnification*: x1, 200
Type: SEM
Copyright 1999 Dennis Kunkel Microscopy, Inc.
Keywords: plants,plant,pollen,ragweed,allergen,anemophily,wind pollination,Ambrosia psilostachya,SEM,10.01.09,99559A