| Ecological question about Cortinarius
I'm going through my new copy of Phillips' book, and I'm struck by something odd about the Cortinarius mushrooms. Why are there so many which are rare, or very rare, and yet so many of them? It's a huge group of mushrooms, but almost none of them are common and most of them seem to be endangered. Are they just very specialised or is there another explanation for this?
Why are so many mushrooms in this group barely hanging on instead of just dying out? |