Pronunciation: [ɡɹˈiːŋɡɪl] (IPA) 
The word "Greengill" is spelled in IPA phonetic transcription as /ˈɡriːnɡɪl/. The first syllable "green" is pronounced with a long "e" sound, followed by a hard "g" and a short "i" sound. The second syllable "gill" is pronounced with a hard "g" and a short "i" sound, followed by a double "l". Greengill is a relatively uncommon word that refers to a stream or brook that runs through a green valley or ravine.
Greengill is a noun that refers to a type of forest mushroom characterized by its greenish-colored cap and gills. It is commonly found in damp and shady areas, typically growing in clusters on decaying wood or leaf litter. The name "greengill" is derived from the distinctive hue of its cap, which ranges from a pale, mossy green to a vibrant shade of emerald.
This particular mushroom belongs to the Agaricales order, and its scientific name is Chlorophyllum molybdites. It is also known by various other names including "false parasol" or "green-spored Lepiota." Greengills are often mistaken for edible mushrooms such as the parasol mushroom, but they are in fact toxic and can cause severe gastrointestinal symptoms if ingested.
The cap of a greengill mushroom is smooth and slightly convex, with a diameter ranging from a few centimeters to up to ten centimeters. Its gills, which start off white and become greenish as they mature, are adnate or free and closely spaced. The stem is white and fibrous, often with a ring around it. Greengills also produce a white spore deposit.
Due to its poisonous nature, it is crucial to accurately identify greengill mushrooms before consuming any wild mushrooms. It is generally advised to seek expert guidance or consult mushroom field guides when foraging or studying mushrooms to avoid any potential health risks.
