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A mushroom of this type in the Malheur National Forest in the Strawberry Mountains of eastern Oregon, was found to be the largest fungal colony in the world, spanning an area of 3.5 square miles (2,200 acres; 9.1 km 2). [2] [8] This organism is estimated to be some 8,000 years old [8] [18] and may weigh as much as 35,000 tons. [8]
The largest living fungus may be a honey fungus [25] of the species Armillaria ostoyae. [26] A mushroom of this type in the Malheur National Forest in the Blue Mountains of eastern Oregon, U.S. was found to be the largest fungal colony in the world, spanning 8.9 km 2 (2,200 acres) of area. [25] [27] This organism is estimated to be 2,400 years old.
The specimen, which was 20 years old, was estimated to weigh between 400 and 500 kilograms (880 and 1,100 lb). This was markedly larger than the previously largest recorded fungal fruit body, a specimen of Rigidoporus ulmarius found in the United Kingdom that had a circumference of 425 cm (167 in).
Armillaria mellea Armillaria hinnulea. The basidiocarp (reproductive structure) of the fungus is a mushroom that grows on wood, typically in small dense clumps or tufts. Their caps (mushroom tops) are typically yellow-brown, somewhat sticky to touch when moist, and, depending on age, may range in shape from conical to convex to depressed in the center.
Fungal-based artificial leather is cheaper to produce, has less of an environmental footprint, and is biodegradable. It costs between 18 and 28 cents to produce a square meter of raw mycelium, while it costs between $5.81 and $6.24 to produce a square meter of raw animal hide. Fungal growth is carbon neutral and pure mycelium is 94% biodegradable.
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Phellinus ellipsoideus (formerly Fomitiporia ellipsoidea) is a species of polypore fungus in the family Hymenochaetaceae, a specimen of which produced the largest fungal fruit body ever recorded. Found in China, the fruit bodies produced by the species are brown, woody basidiocarps that grow on dead wood, where the fungus feeds as a saprotroph.
Armillaria gallica (synonymous with A. bulbosa and A. lutea) is a species of honey mushroom in the family Physalacriaceae of the order Agaricales.The species is a common and ecologically important wood-decay fungus that can live as a saprobe, or as an opportunistic parasite in weakened tree hosts to cause root or butt rot.