. >> my name is bob hendenburg. i'm a volunteer at the center and i became one to learn about plants and i have been learning about plants and since then i changed the way i think about the arbor rightum and a nice place in the golden gate park but since i have been working there i understand it's really something different. it's like a museum. they have got all these amazing plants there, strange and weird things, wonderful thanks from all over the world. >> >> thanks that are hard to grow. you need experts and boftnists and all expertise and i think of it as the people that run the swroor you have to know what you're doing or the people that run the museum to take care of all the beautiful objects and i think if you starve such a place of funding it goes down. it's no longer a precious thing and if you support it properly you can make it more wonderful than it is now. i think it is justified to have other people -- i think there are two reasons to support it. one is the economic reason. you make it more wonderful