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Armillaria ostoyae (synonym Armillaria solidipes) is a species of fungus (), pathogenic to trees, in the family Physalacriaceae.In the western United States, it is the most common variant of the group of species under the name Armillaria mellea.
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.
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.
The largest was apparently 83.5 cm (32.9 in) in height while being 40 cm (16 in) in width. [38] [39] 83.5 cm (32.9 in) in height Weight not stated. It was discovered by 81 year old Liu Dingsheng who states that it grew in only three days. An attempt was made to transplant the cluster to a safer location. Commonly called the Giant Mushroom.
"Humongous Fungus", an individual of the clonal subterranean fungal species Armillaria solidipes in Oregon's Malheur National Forest, is thought to be between 2,000 and 8,500 years old. [48] [49] Apart from its extreme age, it is also thought to be the world's largest organism by area, at 2,384 acres (965 hectares).
The Calyptocephallela gayi, or Helmeted Water Toad, is one of the largest frogs in the world, growing up to over 30 cm (1 foot) in length and weighing up to 1 kg (2.2 lbs). ... Chile's giant ...
Calvatia gigantea, commonly known in English as the giant puffball, is a puffball mushroom commonly found in meadows, fields, and deciduous forests in late summer and autumn. It is found in temperate areas throughout the world.
General Sherman appears to be holding up well (not bad for a 2,200-year-old), but because of pests and climate change, the largest tree in the world needs a checkup