Mycena is a large genus of small saprotrophic mushrooms that are rarely more than a few centimeters in width. The name Mycena comes from the Ancient Greek ????? mykes, meaning "fungus".[1] Species in the genus Mycena (and in Hemimycena) are commonly known as bonnets.[2]They are characterized by a white spore print, a small conical or bell-shaped cap, and a thin fragile stem. Most are grey or brown, but a few species have brighter colours. Most have a translucent and striate cap, which rarely has an incurved margin. The gills are attached and usually have cystidia. Some species, like Mycena haematopus, exude a latex when the stem is broken, and many species have a chlorine or radish-like odour. Recent discoveries show that Mycena can not only grow from a rotting wood, but also from a living plant root and a living frog.[3][4]
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