At long last, a stamp of approval for mushrooms

Mushroom discovered by SF State biologist will be first featured on U.S. postage stamp.

After 226 long years, fungus fanatics around the country can rest easy. A United States Postal Service stamp will finally feature a mushroom — specifically, a glowing species discovered by San Francisco State University Professor of Biology Dennis Desjardin and his colleagues in Brazil. Mushrooms have been bit players in a few USPS stamps as part of larger forest scenes, but stamp-wise, this is their big break. Desjardin and his colleagues have been petitioning the USPS for years to focus on fungi. “We’re really excited about it coming out,” he said. “Having a luminescent mushroom featured shows that fungi are just as important as all of the other organisms that have graced U.S. stamps.” The shroom of the hour is Mycena lucentipes, a Brazilian species that emits a yellow-green glow from its cap down through its root-like mycelium. Its stem is particularly bright and is the inspiration for the species’ name. (Lucentipes is Latin for “light stem.”) Desjardin and his collaborators, Professors Cassius Stevani and Marina Capelari at the University of São Paulo, described the mushroom in 2007 after a nighttime expedition through the Brazilian rainforest. It’s one of 38 bioluminescent species they’ve discovered.

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