海南专家团队确定大型真菌新物种海滨轴灰包

Core Viewpoint - A new species of large fungi, named "Coastal Axial Gray Mushroom," has been officially confirmed by a research team from Hainan Normal University, published in the international journal "Phytotaxa" [1]. Group 1: Species Characteristics - Coastal Axial Gray Mushroom belongs to the order Agaricales and family Agaricaceae, thriving in extreme conditions of Hainan's tropical intertidal zone, withstanding temperatures around 50°C, strong sunlight, salinity stress, and poor sandy soil [3]. - The species exhibits a unique closed cap shape, referred to as "belly fungus," which is hypothesized to be an important evolutionary trait for adapting to extreme environments. It can reach a height of 23 centimeters, with a cap color ranging from light brown to dark brown, covered with hair-like or scale-like structures [7]. - Upon maturity, the cap splits or falls off, dispersing a large amount of spore powder that is carried by the wind. The spore wall thickness reaches 2 to 3 micrometers, significantly larger than other similar fungi [8]. Group 2: Discovery and Classification - The specimen of Coastal Axial Gray Mushroom was first discovered by Yuan Langxing during a coastal survey in Dongfang City. It was later encountered by Xue Meili while birdwatching on a beach in Changjiang Li Autonomous County, who was surprised to find such mushrooms growing in hot sand [5]. - Although recognized as a new species, it was previously identified in China as "Axial Gray Mushroom," originally described in India. Molecular systematics research indicates that the specimens from Hainan are genetically distinct from the true Axial Gray Mushroom, representing an independent new species [8]. Group 3: Ecological Importance and Conservation - Coastal Axial Gray Mushroom grows in a critical ecological area, with its underground mycelial network playing a role in sand stabilization and coastal protection. Experts recommend establishing dedicated protection zones to maintain the integrity and sustainability of this species and its ecosystem [10].