They use… “treE-Mail”. 
Of course, when they do write, it’s typically pulp fiction…
That’s exactly what I was thinking. They keep copies of each message in a branch directory of the root.
And I suppose they use the pine mail client.
Once somebody played me a recording of trees “talking” to each other. The idea was that the trees exchange some kind of electronic signals with each other and somebody had figured out a recording process to pick up these signals and convert them into audible sonic waves.
I forgot who made that recording. Anybody heard of this?
Thanks Funeefarmer for the valiant attempt to raise this thread to the level of education.
And to all you punsters out there you all deserve the Birch!!
Like I always say, Ash and Yew shall receive.
I have not yet been able to locate the electronic recording of trees talking to each other, but I’m getting warmer. Found this news story that perhaps answers the OP:
TREES TALK IN W-WAVES
We quote below from as Associated Press dispatch:
"Grants Pass, Ore. (AP) - Physicist Ed Wagner says he has found
evidence that trees talk to each other in a language he calls
W-waves.
"If you chop into a tree, you can see that adjacent trees put out an
electrical pulse," said Wagner. "This indicates that they
communicated directly."
"Explaining the phenomenon, Wagner pointed to a blip on a strip
chart recording of the electrical pulse.
"It put out a tremendous cry of alarm," he said. "The adjacent trees
put out smaller ones." .....
"People have known there was communication between trees for
several years, but they've explained it by the chemicals trees
produce," Wagner said.
"But I think the real communication is much quicker and more
dramatic than that," he said. "These trees know within a few
seconds what is happening. This is an automatic response."
"Wagner has measured the speed of W-waves at about 3 feet per
second through the air.
"They travel much too slowly for electrical waves," he said. "They
seem to be an altogether different entity. That's what makes them
so intriguing. They don't seem to be electromagnetic waves at all."
(Anonymous; "Physicist Says Blip Proves Trees Talk," Seattle Sun Times,
February 12, 1989. Cr. R.L. Simmons)
Comment. In addition to the above discovery, Wagner, who holds a PhD in
physics from the University of Tennessee, has detected electrical standing
waves in trees. The voltage measured by electrodes implanted in trees goes
up and down as one goes higher and higher up the trees. Wagner's work has
been published in Northwest Science, but we have not yet seen it. Incidentally,
electricity does seem to affect plant growth, as described in our handbook:
Incredible Life. For a description of this book, visit: here.
From Science Frontiers #63, MAY-JUN 1989. © 1989-2000 William R. Corliss
I bough to Wagner’s work on tree communication. Hes no sap.I believe he branched into other forms of vegetable communication as well.
A description of a book that might offer a followup to the 1989 AP story. From here…
"* WAVES IN DARK MATTER by O. ED WAGNER. A sequel to the author’s prior work on “W-Waves”, the author reveals the relationship between w-waves, which govern tree-sap movement to the tops of tall trees, to gravitational functions. “Dark Matter”, as determined by the author, presents a striking descriptive similarity to Reich’s orgone energy. 188 pp.
$19.95 Softcover "
So W-Waves govern tree sap movement. Has anyone read this and what do W-Waves have to do with dark matter ?
I wonder if telepathic people possess similar waves as trees.
One assumes that they use the bush telegraph. Of course, in England of the 1950s, they had to make trunk calls. (Please excuse my lumbering sense of humour.)
I could have sworn that CSICOP did something on the whole w-wave silliness (which apparently also is claimed to govern why acupuncture works – go figure), but I can’t find more than a passing reference to it.