[Mycology] 2 Q's: Snowbanks globally and Amanita mycorrhizals

[J & J]

Hi there,

Is it true that snowbank fungi have only been found in western north
america, or is it just very rare for them to be found in other parts of
the world? Or, is this data possibly due to this being a topic not
heavily investigated in other parts of the world?

Is it rare or not-unusual for Amanitas to form non-ecto-mycorrhizal
relationships?  I had assumed their mycorrhizal relationships were
always EM, but found a reference to Amanita aureofloccosa stating that
it is "non-ecto-mycorrhizal" (ref. did not elaborate further).

With thanks in advance for any response.

Yours in curiousity,
Juliet Pendray