This is the author's peer-reviewed final manuscript, as accepted by the publisher. The published article can be found at: http://194.254.27.242/photo/10.pdf.
Keyword:Truffle harvesting Tuber gibbosum complex Oregon white truffles Leucangium carthusianum Oregon black truffles Kalapuya brunnea Oregon brown truffles Imaia gigantea giant Imaia Tuber lyonii complex Pecan or Texas truffle Tuber canaliculatum yellow-furrowed truffle
