With the arrival of Japan’s rainy season, a glow-in-the-dark mushroom begins to sprout in Wakayama prefecture. The Mycena lux-coeli mushrooms sprout from fallen chinquapin trees and as they grow, a chemical reaction involving a light-emitting pigment occurs, causing them to glow a ghostly green. The caps can grow to as large as 2 cm (about 1 inch) in diameter, but because the mushrooms are prone to dehydration, they only have a few days to live once the rain stops. Glowing Mushrooms
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