Ludisias - the so-called Jewel Orchids are also ground orchids I think, although I do have mine in little hanging baskets c/w sphagnum in the soil mix and very loose soil. I'm contemplating trying an offset in the ground once spring is here. The Macodes Petola in the picture foreground is related. They have 'jewelled' leaf veins that sparkle like gold or ruby in the sunlight. (but don't grow them in the sun!)
