Fungi fd. 8/24/2000

truffler1635 at my-deja.com truffler1635 at my-deja.com
Mon Sep 25 19:26:13 EST 2000


Found the following fungi at 3600-3700 feet elevation in Clackamas
County, OR on 8/24/2000. It is interesting to me that all these fungi,
found the same day, have economic value, and all are mycorrhizal (with
the possible exception of Lentinus tigrinus).

Dentinum repandum (Hedgehog)
Armillaria mellea
Boletus edulis
Cantharellus formosus
Russula xerampelina
Russula, 4" brown cap, not keyed out yet
Lentinus tigrinus
Rhizopogon vinicolor (approx. 4 lbs.)

An interesting side note is that the Rhizopogon vinicolor, ubiquitous in
second-growth forests, was found under very old-growth forest (basal tree
diameter 8' plus). Rhizopogon vinicolor is one of the easiest "truffles"
to cultivate, is edible (but not generally considered choice), a relative
of Suillus mushrooms, and at this particular site can be quite large: up
to 4" diameter!

Four pounds of Rhizopogons translates to enough inoculant to treat about
4-8 billion seedling trees, when applied as a simple slurry added to the
watering system. As one of the few ectomycorrhizal fungi readily
available, it boosts tree seedling growth while increasing the survival
rate once planted out at almost any elevation where Douglas fir is found,
and appears to stimulate root growth.

Daniel B. Wheeler
www.oregonwhitetruffles.com


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