What's the Difference Between the Red and the Red?

Day to susanne runner has been studying these things for years. She is a he former director of the munich botanical garden and herbarium there in germany, and now an honorary professor of biology at washington university. If you have questions or comments about what you're seeing with the fall foliage, you can give us a call at three, one, four, three, eight, two, two, five, five. That's three, eight two talk. You can also send us a tweed at s t l on air.