If you read the whole article, you'll see that whoever wrote the "inside the root" statement was mistaken.
Here's the direct quote from American botanist Lou Jost, who discovered the orchid. "I found it among the roots of another plant that I had collected . . . I saw that down among the roots was a tiny little plant that I realized was more interesting than the bigger orchid."
Not inside the root; among the roots.
Absolutely fascinating discovery and a beautiful little orchid to boot - even if you need a microscope to appreciate it!