Thanks for the tip Keith. Unfortunately, that is the one on-line source I was referring to in my original post, and they are out of stock on the two species I am looking for. I e-mailed them to ask if they were out of stock for 2005, or if I could expect that they would have more seeds this season, but received no reply. So I am still looking for a source for A. ovalifolia and A. viridiflora. I am willing to buy or swap...I currently have seeds from 6 other species native to Michigan. Any help is much appreciated!
Lawrence Family Garden
Monarch Waystation #163