parent_taxon panellus
___MASK82___ is a large genus of small saprotrophic mushrooms that are rarely more than a few centimeters in width . They are characterized by a white spore print , a small conical or bell - shaped cap , and a thin fragile stem . Most are gray or brown , but a few species have brighter colors . Most have a translucent and striate cap , which rarely has an incurved margin . The gills are attached and usually have cystidia . Some species , like " ___MASK82___ ___MASK60___ ", exude a latex when the stem is broken , and many species have a chlorine - like odor . The ___MASK71___ are a large family of mushrooms within the Agaricales . A classic " wastebasket taxon ", the family is inclusive of any white -, yellow -, or pink - spored genera in the Agaricales not already classified as belonging to the Amanitaceae , Lepiotaceae , Hygrophoraceae , Pluteaceae , or Entolomataceae . Panellus is a genus of about 55 species of ___MASK55___ in the Mycenaceae family . The ___MASK49___ are a family of ___MASK55___ in the order Agaricales . According to the " Dictionary of the ___MASK55___ " ( 10th edition , 2008 ), the family contains 10 genera and 705 species . This is one of several families that were separated from the ___MASK71___ as a result of phylogenetic analyses . Taxa in the ___MASK49___ are saprobic , have a cosmopolitan distribution , and are found in almost all ecological zones . The family was circumscribed by Caspar van Overeem in 1926 . The fungal order ___MASK100___ , also known as gilled mushrooms ( for their distinctive gills ) or euagarics , contains some of the most familiar types of mushrooms . The order has 33 extant families , 413 genera , and over 13000 described species , along with five extinct genera known only from the fossil record . They range from the ubiquitous common mushroom to the deadly destroying angel and the hallucinogenic ___MASK67___ to the bioluminescent jack - o - lantern mushroom . A genus ( genera ) is a taxonomic rank used in the biological classification of living and fossil organisms in biology . In the hierarchy of biological classification , genus comes above species and below family . In binomial nomenclature , the genus name forms the first part of the binomial species name for each species within the genus . In biology , an organism is any contiguous living system , such as an ___MASK77___ , plant , fungus , archaeon , or bacterium . All known types of organisms are capable of some degree of response to stimuli , reproduction , growth and development and homeostasis . An organism consists of one or more cells ; when it has one cell it is known as a unicellular organism ; and when it has more than one it is known as a multicellular organism . Most unicellular organisms are of microscopic scale and are thus loosely described as microorganisms . Humans are multicellular organisms composed of many trillions of cells grouped into specialized tissues and organs . Binomial nomenclature ( also called binominal nomenclature or binary nomenclature ) is a formal system of naming species of living things by giving each a name composed of two parts , both of which use Latin grammatical forms , although they can be based on words from other languages . Such a name is called a binomial name ( which may be shortened to just " binomial "), a binomen or a scientific name ; more informally it is also called a Latin name . The first part of the name identifies the genus to which the species belongs ; the second part identifies the species within the genus . For example , humans belong to the genus " ___MASK40___ " and within this genus to the species " ___MASK40___ sapiens ". The " formal " introduction of this system of naming species is credited to Carl Linnaeus , effectively beginning with his work " Species Plantarum " in 1753 . But Gaspard Bauhin , in as early as 1623 , had introduced in his book " Pinax theatri botanici " ( English , " Illustrated exposition of plants ") many names of genera that were later adopted by Linnaeus .