It is interesting that although there are some photographs of parts of pollen
traps, and there are discussions and descriptions of pollen traps and their
use on the Internet, I have not ever seen any "plans" to build a pollen trap
anywhere I have looked.  I have not looked recently, but the last time I looked
I could not find any.  I think we currently have an unmet need here.

Layne Westover
College Station, Texas, U.S.A.