Dear Jane, Thanks for sharing this with everyone. My husband and I went on a botany trip to Australia sponsored by UC Santa Cruz a number of years ago when Sean and Parker were still living in the Bay Area. Parker was along and added so much to the trip with his humor, high energy, and enthusiasm. He was to be found hanging from trees, prone on the ground, whatever it took to get "the picture". A young man at the time, he had already been so many places, often figuring out a way to get his trip paid for by someone else by writing a paper afterwards. He is an important part of my memory of that trip and the memories of him always generated a smile. It's very sad to think that he has died at such a young age. He was so full of life and so enthusiastic about plants. Mary Sue