### Identification To spot *Ameghiniella frondosa*, look for what appears to be tiny, dark seaweed clinging to rotting wood. These fungi form distinctive, gelatinous clusters of "fronds" or lobes, typically measuring 10–25mm in height. Their coloration is their most striking field mark: a deep, somber olive-green that can appear almost charcoal-black in low light. Unlike the rigid, woody brackets of other fungi, these are rubbery and malleable to the touch. You can distinguish them from the common Blue Elf Cup (*Chlorociboria*) by their lack of a distinct "cup" shape and their much darker, oil-slick green hue, which lacks the bright turquoise brilliance of its cousins.
### Habitat & Range This species is a quintessential inhabitant of the "Gondwanan" cool temperate rainforests. It is most frequently encountered in the mist-drenched forests of Patagonia (Southern Chile and Argentina) and New Zealand. It is a specialist of the *Nothofagus* (Southern Beech) ecosystem, almost exclusively colonizing fallen, barkless logs in high-moisture environments. Look for it in the shadowed "micro-canyons" created by stacked leaf litter and decaying timber.
### Behaviour As a saprobic fungus, *A. frondosa* is one of the forest’s quietest recyclers. An observer will notice that it fruits "gregariously"—it is rarely a solitary find. Instead, dozens of these rubbery lobes erupt simultaneously from the wood grain after heavy autumn or winter rains. While it doesn't "move," its growth is a response to saturation; the fruiting bodies swell with water, becoming turgid and glossy, then release microscopic spores from their surface to be carried away by the damp forest drafts.
### Diet *Ameghiniella frondosa* "eats" the past. It is a wood-decay specialist that secretes powerful enzymes to break down complex lignins and cellulose within dead hardwood. By infiltrating the wood fibers with a network of microscopic mycelia, it digests the log from the inside out, converting ancient timber back into nutrient-rich soil.
### Fascinating Fact Despite looking like a soft, perishable jelly, the deep green pigment in *A. frondosa* is incredibly resilient. Even after being dried and stored in a museum herbarium for over fifty years, the specimens retain their eerie, dark-green color, refusing to fade into the typical "mushroom brown" seen in most preserved fungi!