The trooping funnel is a large and visually impressive mushroom that has established itself in various environments across New Zealand. It is perhaps best recognised by its characteristic funnel-shaped cap, which begins as a convex form with an inrolled margin before expanding and deepening into a wide, open depression at the centre. The cap surface is typically a smooth, creamy-buff or light tan colour, often featuring a small, distinctive boss or bump in the very middle of the depression. As it matures, the cap can reach a diameter of 20 centimetres, making it a prominent feature of the forest floor. Beneath the cap, the gills are decurrent, meaning they run down the stalk, and they are usually a pale, creamy colour. The stem is similarly robust and firm, often bulbous at the base, providing stable support for the heavy cap. When fresh, the mushroom emits a pleasant, faintly sweet aroma that some have likened to almonds. Ecologically, the trooping funnel acts as a saprotroph, performing the vital role of recycling organic matter. It is typically found growing in troops, arcs, or expansive fairy rings, which is where it derives its common name. The mycelial network of this fungus is extensive and persists over long periods, allowing it to produce fruit bodies year after year in the same location. It thrives in shaded but open areas, often at the margins of woodlands where leaf litter and organic debris accumulate. This growth habit allows it to efficiently exploit nutrient sources in the soil. Its presence is a common sight during the wetter, cooler months, when the environment provides the necessary moisture for the rapid expansion and development of its large fruit bodies. While historically considered edible in some parts of the world, the trooping funnel is not a common subject for culinary foraging in New Zealand, largely due to the risk of misidentification with potentially toxic species that share similar colours or shapes. As an introduced organism, it has integrated into local ecosystems without causing significant disruption to native flora, simply occupying niches that provide the necessary decaying organic matter for its lifecycle. For naturalists and casual observers, the trooping funnel remains an intriguing example of fungal architecture. Its ability to form large, persistent fairy rings provides a fascinating glimpse into the hidden, subterranean life of fungi. Observers are encouraged to enjoy its aesthetic form and complex growth patterns from a respectful distance, appreciating its role as a recycler of dead plant material within the landscape.