For years I have admired the Amaryllis without ever noticing these barbs at the tips of the tepals. I had to rush out and check my last few blooming. (The white are still in bloom; the pink faded weeks ago.) I can just barely see these and tried to get a photo but my photo is not as sharp as David's. http://flickr.com/photos/gastils_garden/… It is hard to imagine what advantage these tiny barbs could serve the flower. Maybe they help a pollinator perch without slipping off? - Gastil