The Evolution of Calametium

The way things roll up in bud is important because it's... It's a very primitive character in many respects. So how that leaf forms of course can be diagnostic for what else it's related to and where it comes out on a phylogeny. I have an interim section of Calametium, which is a big group and beautiful. They have terepetils, they have thick blades, they have really colorful flowers. Then you've got an interim cardiologicum, which we're currently revising with volunteer. The velvety leaves is perfect for capturing light.