Today (August 27, 2025) Canada Post released a set of five “fantastic fungi” stamps, a follow-up to a previous set of four from 1989. Keith Siefert, author of The Hidden Kingdom of Fungi, was the main expert-consultant for these. He wrote the original proposal about two years ago and followed the process through all its stages up to the little video and the web announcement. The project was triggered when the head of the Canada Post stamp department read one of the interviews he did for The Hidden Kingdom.
You’ll note that Keith stuck one of his career-interest microfungi in the set. Having an arbuscular mycorrhizal mushroom on a stamp may be a world first!