Mycena lazulina

Mushroom Identification

This bioluminescent wonder of nature, Mycena lazulina (AKA Tiny Blue Lights or Forbidden Sour Candy), belongs to the Mycenaceae family and was first discovered in 2016 in southwestern Japan. The name "lazulina" draws inspiration from the deep blue color of lapis lazuli. 🌌

✨ Appearance

The caps are tiny, only 1-3mm in diameter, starting off pure white and hemispherical, becoming light yellow with age. They have a delicate translucent surface with noticeable radial grooves. Beneath the cap, the white gills are sparse and powdery, forming a ring around the thin, hollow stem. The stem stands at just 3-6mm tall, with a striking indigo-blue base, adding to the mushroom's luminous charm. 🍄

💡 Glow in the Dark

One of the most magical features of this mushroom is its bioluminescence! It emits a green glow, although not all parts of the mushroom shine at once. Sometimes only the mycelium, sometimes the primordium, and sometimes just the stem will light up in the dark. It's a mystical treasure for those lucky enough to spot it glowing on dead trees, bamboo, or coconut trunks. 🌙✨

🌳 Habitat

Mycena lazulina grows in groups on decomposing wood from summer to autumn. It's been found on the stipes of tree ferns in Australia, hiding in plain sight during the day but much easier to find at night due to its soft green glow. 🌲

⚠️ Toxicity

Be warned—this tiny mushroom contains muscarine, a dangerous toxin that can cause poisoning or even death. It's definitely not something you'd want to taste. ⚠️💀

🌍 Similar Species

A close relative, Mycena arundinarialis, found in East Africa, shares its bioluminescent trait but is larger, with a lavender base and a hairy texture.

Mycena lazulina may be small, but its otherworldly glow makes it a remarkable gem in the world of mushrooms.

Photo sources:

Photo 1 - Author: Ian Dodd (CC BY-SA 3.0)

Photo 2 - Author: JJ Harrison (CC BY-SA 4.0)

Photo 3 - Author: Mori Chen (CC BY 4.0)

Photo 4 - Author: Mori Chen (CC BY 4.0)