cups up on the warm humid dead wood
- Size
- Height: 1–3 cm
- Lifespan
- 5–10 days
- Diet
- Saprotrophic: feeds on decaying wood of native broadleaf trees. Prefers well-rotted wood.
- Habitat
- Grows on decaying wood in warm, humid forests. Forms small, cup-shaped bright pink fruiting bodies.
- Range
- Northern North Island, particularly in Northland, Auckland and Coromandel. Also found globally.
- Endemism
- Native
- Main Threats
- None significant. Localised threats include forest clearance and climate change making forests drier.
- Population
- A tropical cup fungus reaching its southern limit in NZ. Bright pink cups on short stems.
- Conservation Status
- Not Threatened
- Human Risk
- caution
- Handling Note
- inedible; do not ingest
- Conservation Note
- Native fungus; not assessed by NZTCS as fungi are generally outside the scope of current threat classifications.
- Te Ao Māori
- In Māori tradition, the Pekepekekio was seen as a bright tropical visitor. Its brilliant pink colour was regarded as a gift from the tropics. The sudden appearance of the fungus after heavy rain was interpreted as a sign. It indicated that the forest was warm and healthy. The presence of such a vibrant species in the damp undergrowth was noted. It served as a marker of ecological vitality. The connection between the warmth of the weather and the emergence of the cup was observed. This knowledge helped guide understanding of the forest's seasonal rhythms. The fungus was not eaten, but its beauty was acknowledged. It remained a visual indicator of the environment's state.
It arrives as a shock of colour in the muted greens and browns of the forest floor. The Pekepekekio is a tropical show-off, defined by a hue that seems impossible in the temperate bush. The cup is a shocking pink to brilliant orange-red. It is a tiny goblet, no more than two centimetres across. It sits perched on a slender stem, resembling a miniature champagne flute left behind after a fairy party. The inner surface is smooth and glossy. It looks almost wet. This is where the magic happens. The outer surface tells a different story. It is covered in fine, pale hairs. These give the cup a fuzzy, velvety texture.
Look closely and the simplicity dissolves. The cup is not just a bowl. The edges are often slightly ruffled or curled. The whole structure has a delicate, almost translucent quality when backlit by a shaft of forest sunlight. It looks like something from a coral reef rather than a rotting stick in a New Zealand gully. The visual dissonance is striking. It does not belong here. Yet it persists.
Biologically, this fungus is a latecomer to the decay party. It cannot break down fresh wood on its own. It waits for other, more robust fungi to do the heavy lifting. They soften the timber and break down the tough lignin. Once the wood has been partially rotted, the Pekepekekio moves in. Its fine mycelium threads through the soft, punky remains. It extracts the last remaining nutrients. It is the clean-up crew for the clean-up crew. This niche requires patience. It also requires timing.
The cup shape serves a purpose beyond aesthetics. The spore-producing tissue lines the inside. When the spores are mature, the fungus uses a remarkable mechanism to shoot them into the air. As the cup dries, the cells on the inner surface contract unevenly. This creates tension. When the tension reaches a breaking point, the spores are ejected in tiny puffs. They are visible only with a hand lens. They launch themselves into the air currents. These currents carry them to new branches and new logs. It is a violent act performed in silence.
To find a Pekepekekio is to find a tropical splash of colour in the temperate New Zealand bush. It is a stray from the tropics. It is a warm-weather wanderer that has somehow made a home in the chilly south. But there it is. Bright pink and unapologetic. A tiny goblet of colour on a rotting stick. It reminds us that the forest is always full of surprises if you know where to look. It does not care about our expectations. It simply grows.
No one told it otherwise.