I wrote:

2. If you need Mycorrhiza, they/it almost always will come.
With no effort on your part. I dunno why. Or how. (Maybe
Nina
does.)

Then Nina wrote:
Pretty soon we'll be finishing each other's sentences, Jim.


And I add:

It's called "a setup," Nina. ;-)

Endomycorrhizae have large, thick-walled spores that blow in
the
wind. They'll infect a potted bonsai. Ectomycorrhizae are
formed by
"mushrooms" (boletes, truffles, morels, etc). Spores from the
fruiting bodies might well infect a potted tree, or tiny clumps
of
mycelium in blown dirt might.

And I KNEW you knew.

And I'd guess that the Ecto-type probably come in on what soil
clings to a collected tree's roots (even when bare rooted and
"all" soil is washed away) or in remnants of "old" soil in a
long-potted tree.

Jim Lewis - - Tallahassee, FL - "People,
when Columbus discovered this country, it was plum full of nuts
and berries. And I'm right here to tell you the berries are just
about all gone." -- Uncle Dave Macon, old-time musician

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