Mycoheterotrophic Plants

How many of them are there?

Neue Mittheilungen über die Mycorhiza der Bäume und der Monotropa hypopitys

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