Crests are common on lilies (lily people call them fasciated stems). In lilies, the crested stems carry many more blooms than normal stems. I've got several crested stems in my lily patch right now - I'll post some photos later and you'll see what I mean. In lilies, since the cresting occurs at the tip of the annual stem, it does not carry over from year to year. I've seen photos of crested Fritillaria imperialis, and in the Gottofer Codes there is an image of what appears to be a crested tulip and a crested Lilium candidum.. Kathleen, thanks so much for posting the link to the Gottofer Codex. Jim McKenney Montgomery County, Maryland, USA, USDA zone 7, waiting for 60 mph winds and the derecho.