Answer to the Friday Whatsit for April 30, 2010
Kathleen correctly guessed the answer to the Friday whatsit for last Friday (April 30, 2010). It is pollen, specifically pollen from a tickseed (Coreopsis vericillata threadleaf) in my yard that I preserved from last summer.
Pollen counts are unusually high all over the US this year, making it miserable for outdoor allergy suffers. Check the pollen forecast for your area with the Weather Channel or for the whole US at pollen.com.