Panellus Stipticus, commonly known as Bitter oyster, is one of a number of fungi that demonstrate bioluminescence. This fungus is particularly interesting as it's one of very few that display bioluminescence through their mycelium rather than solely the fruiting body (mushroom). In an exploration around the use of bioluminescence in bio-wearable technology, this panellus was grown in our lab on a number of substrates and photographed using long exposure.