Red-cage Fungus

The Clathrus ruber, famously known as the Latticed Stinkhorn or the Basket Stinkhorn, looks like something from a sci-fi movie or a gothic fairytale. Known in parts of Europe as the "Witch's Heart," this fungus starts as a modest, pale "egg" before rupturing into a vibrant, scarlet geometric cage. It doesn't use the wind to spread its spores; instead, it uses a pungent scent to recruit flies as its personal courier service.

🔍 How to Identify

• 🔴 The Lattice: A bright orange to blood-red hollow sphere made of interlaced branches, resembling a geometric cage or a porous ball.
• 🥚 The Volva: Before expanding, it sits inside a white, leathery "egg" partially buried in the soil, which remains as a cup at the base once the mushroom "blooms."
• 🪰 The Gleba: The inner surface of the red branches is coated in a dark, olive-green, slimy substance that smells intensely of rotting meat.

🌲 Habitat & Ecology

• 🍂 Substrate Preference: You will most often find this mushroom erupting from wood chips, garden mulch, or decomposing leaf litter in urban parks and residential gardens.
• ☀️ Climate Needs: It thrives in warm, humid conditions. While originally a Mediterranean species, it has hitchhiked across the globe in mulch shipments and is now common in North America, Australia, and parts of Asia.
• 🤝 The Fly Strategy: The foul smell is a deliberate evolutionary tactic to mimic carrion. Flies land on the sticky green slime, pick up spores on their feet, and transport them to new locations.

⚠️ Safety & Toxicity

• 🛑 WARNING: While not classified as a deadly mushroom, Clathrus ruber is strictly non-edible. Its overwhelming smell is a natural "keep away" sign that should be respected.
• 🤢 Gastrointestinal Distress: Ingestion is reported to cause severe stomach cramps, violent vomiting, and diarrhea.
• 🐾 Pets & Kids: Because of its bright color and unusual shape, it may attract curious toddlers or dogs. It is best to remove them from play areas if you are concerned about accidental ingestion.
• 🧤 The Stink: It is not toxic to touch, but the "slime" is incredibly persistent. If you handle it without gloves, the smell of rotting flesh may linger on your skin for hours, even after washing.

✨ Fun Fact

In ancient folklore, this mushroom was so feared for its blood-red color and "hellish" odor that some believed it could cause skin disease just by looking at it, while others claimed it grew only where a drop of a sorcerer's blood had fallen!