Mycoheterotrophic Plants

How many of them are there?

Note on the occurrence of cryptic and endangered mycoheterotrophic orchid Galeola falconeri Hook. f. from western Himalaya

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith