Dear Lyn, The color of the flower in your picture is enchanting. Could your mystery bulb be Oxalis massoniana? It blooms for me in the Northern Hemisphere from September through November so the timing could be right. I have added a picture my husband took last fall to the wiki: http://pacificbulbsociety.org/pbswiki/files/… Some of my all time favorite pictures of this were taken by Tony Palmer who had blooms so solid they were covering the leaves. But seeing leaves is helpful for I.D. purposes. This is one of my favorite fall blooming Oxalis. Now that Bill Dijk has mastered the Wiki I imagine we will see some more photos appearing of Oxalis from time to time. Mary Sue