Plenty of people believe that orchid species is the same as orchid types. That’s not true. On the subject of types of orchids we separate them by how they grow. Epiphytic grow on live stuff, Lithophytes grow on rocks and Terrestrials grow on the ground. These are the orchids types truly.
Another school of thought combines Epiphytic and Lithophytes, both of which grow off the ground. Have a better understanding on this and plenty more info, visit the link in the previous para and get a free ebook at the site!