Trees, Shrubs and Conifers: Can anyone ID this shrub?, 0 by bogman

bogman wrote:
Well, I found this Shrub at the Cleveland metroparks zoo. No one there knew what it was. I think it is an Amalanchier but would like some other opinions. It is Alternate leaved, has lenticels, and the flower parts are in groups of 5. The flowers are arranged in loose (panicles?) of 2-5 flowers that elongate very much like other Amalanchier species as they begin to open. the flowers are much smaller than other species I've seen and the petals are pale apple green. Here is a scan of the branch with buds/flowers. but I don't know if it will help. Seems like it must be in the family Rosaceae.