General George Owen Squier, the Chief Signal Officer at the U.S. army not only coined the word “muzak”, in 1904 he also invented in 1904 a system that used living vegetable organisms such as trees to make radio contact across the Atlantic. The invention never really took off as the advent of more sophisticated means of communication made tree communication quickly look anachronistic.
Tree communication was briefly back in favour during the Vietnam War when U.S. troupes found themselves in the jungle and in need of a reliable and easy to transport system of communication but after that, only a few groups of hobbyists used tree antennas for wireless communication.