27 genera
137 species
4 subspecies and varieties
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Agaricus altipestall stem Agaricus
Agaricus arvensishorse Agaricus, horse mushroom, prairie mushroom
Agaricus augustusgiant Agaric, horse Agaric, prince Agaricus, the prince
Habitat: Found in particularly in well watered areas under cedars and in disturbed areas, such as campgrounds or along trails or roads.
Agaricus bernardiisalt-loving Agaricus, salt-loving mushroom
Agaricus bisporuschampignon, button mushroom, commercial mushroom, cultivated mushroom
Agaricus bitorquisbanded Agaric, spring Agaric, urban Agaric, banded Agaricus, spring Agaricus, urban Agaricus, pavement mushroom, sidewalk mushroom, tork
Agaricus campestrismeadow Agaricus, pink bottom, champignon, common field mushroom, hot-bed mushroom, meadow mushroom
Distribution: Worldwide
Habitat: Found in fields or pastures, especially those rich in manure
Agaricus comtulussmall slender Agaricus
Agaricus diminutivusdiminutive Agaricus
Agaricus hondensisfelt-ringed Agaricus, felt-ringed mushroom
Habitat: Occurs primarily in forests, seems to be restricted to the Pacific Coast, and is more common in California than it is in the PNW.
Agaricus inapertusmountain gastroid Agaricus
Agaricus micromegethusanise Agaricus
Agaricus purpurelluspurple Agaricus
Agaricus semotuswine Agaricus, rosy wood mushroom, yellow-bulbed mushroom
Agaricus silvaticusred-staining Agaricus, blushing wood mushroom, forest mushroom, red-staining mushroom, scaly wood mushroom, sylvan mushroom
Agaricus silvicolaforest Agaric, sylvan Agaric, woodland Agaricus, woods Agaricus, sylvan mushroom, wood mushroom
Distribution: Broad
Habitat: Forests and woodlands
Agaricus subrutilescenswine-colored Agaric, wine-colored Agaricus, woolly-stemmed Agaricus, woolly-stem
Agaricus vaporariusclustered mushroom
Battarrea phalloidesdesert drumstick, flatcap stalked puffball, scaly-stalked puffball, sandy stiltball
Bovista pilatumbling puffball
Bovista plumbeagrey puffball, lead-colored puffball, tumbling puffball, tumble-ball
Calbovista subsculptasculptured giant puffball, sculptured puffball, warted giant puffball
Calvatia boonianaBoone's puffball, western giant puffball
Habitat: Sagebrush steppe and open, grassy areas
Calvatia cyathiformispurple-spored puffball, vase puffball
Calvatia fumosa
Distribution: Common in montane conifer forests during spring and summer
Calvatia giganteagiant puffball
Calvatia sculptasculptured puffball, Sierran puffball
Calvatia subcretaceasmall warted mountain puffball
Chlamydopus meyenianusdesert stalked puffball
Chlorophyllum brunneumshaggy parasol
Coprinus comatusshaggy inkcap, lawyer's-wig, shaggy-mane
Crucibulum laevecommon bird's nest fungus, yellow bird's nest fungus, common birds' nest, white-egg bird's nest
Cyathus ollafield bird's nest, deep splashcup
Cyathus stercoreussplash-cup bird's-nest, dung-loving bird's-nest fungus, dung bird's nest
Cyathus striatusfluted bird's-nest, streaked bird's-nest, splash cups, ribbed splashcup
Habitat: It can be common in gardens where woody materials have been added to the planting beds.
Substrate: Cyathus striatus occurs in a number of different habitats on decaying plant materials such as wood chips, small branches, and needles.
Cystoderma amianthinumpure Cystoderma, unspotted Cystoderma, saffron parasol, earthy powdercap
Cystoderma fallaxconifer Cystoderma
Distribution: Only in North America
Habitat: It occurs in a variety of habitats, including conifer, mixed, and hardwood forests on litter, humus, rotting wood, and in mosses.
Cystodermella cinnabarinavermilion Cystoderma, cinnabar powdercap
Cystolepiota bucknalliililac dapperling, Bucknall's Lepiota
Floccularia albolanaripesshaggy-stalked Armillaria, sheathed Armillaria
Floccularia luteovirensscaly yellow Armillaria, shaggy-stem
Gymnopus acervatusclustered Collybia, conifer toughshank
Habitat: Conifer forests
Substrate: Rotting logs and stumps, other woody debris
Gymnopus confluenstufted Collybia, clustered toughshank
Distribution: Mixed woods with heavy litter accumulations
Gymnopus dryophiluscommon Collybia, oak Collybia, June mushroom, russet toughshank
Spores: whitish to pale yellow, smooth, and do not react in Melzerā€™s reagent
Gymnopus erythropusredleg toughshank
Distribution: Northern hemisphere
Habitat: Forested areas
Gymnopus luxurians
Distribution: It occurs in a variety of urban and suburban habitats including flower beds with wood chips and in lawns around the roots of trees. It can appear in summer, when few other species are fruiting, if sufficient moisture is available, such as from yard-watering.
Gymnopus perforansstinking parachute
Gymnopus peronatuswood woolly-foot
Distribution: G. peronatus is a widespread and often extremely abundant species at lower elevations in the PNW, occurring in mixed woods on leaf litter and woody debris.
Spores: long and narrow and the edges of the gills have long, slender cheilocystidia
Lepiota albasmall white parasol
Lepiota clypeolariashield dapperling, shaggy-stalked parasol
Lepiota cristatacrested dapperling, stinking dapperling, brown-eyed parasol, stinking parasol
Lepiota felina
Distribution: Uncommon
Lepiota flammeotinctaflaming parasol
Lepiota magnisporayellowfoot dapperling
Leucoagaricus barssiigray parasol
Substrate: Sandy or loamy soils
Leucoagaricus leucothiteswhite dapperling, smooth parasol, woman-on-motorcycle
Habitat: It is a widespread mushroom that occurs mostly in grassy areas, gardens, and other human-influenced habitats, but also occasionally in forests.
Leucoagaricus rubrotinctusred-eyed parasol, red-tinged parasol
Habitat: Very common and conspicuous in coastal and lower elevation forests.
Leucocoprinus birnbaumiiplantpot dapperling, flower pot parasol, yellow parasol
Leucocoprinus brebissoniiskullcap dapperling
Distribution: Common
Habitat: woodland
Spores: Most abundant in summer
Leucocoprinus cepistipesonion-stalk parasol
Leucocoprinus ianthinus
Habitat: Compost piles, potted plants
Lycoperdon curtisiiCurtis' puffball
Lycoperdon dermoxanthumdwarf puffball, small tumbling puffball
Lycoperdon mollesmooth puffball, soft puffball
Lycoperdon nigrescensdark puffball, dusky puffball
Habitat: Conifer forests and alpine habitats
Lycoperdon perlatumwarted puff-ball, gem puffball, gem-studded puffball, devil's snuffbox
Habitat: L. perlatum can be found in disturbed sites, such as forest roadsides, from late summer through fall whenever there is sufficient moisture.
Lycoperdon pulcherrimumbeautiful puffball
Lycoperdon pyriformepear puffball, pear-shaped puffball, stump puffball
Distribution: Broad.
Melanophyllum haematospermumred-gilled Agaricus, redspored dapperling
Habitat: Found in a variety of habitats including forests, green houses, and manure piles
Montagnea arenariagastroid Coprinus
Nidula candidajellied bird's nest fungus, common gel bird's nest
Nidula niveotomentosawhite barrel bird's nest
Phaeolepiota aureagolden bootleg, gold cup, Alaskan gold, golden false Pholiota
Distribution: Widely distributed
Habitat: Usually found in the north temperate zone in disturbed areas of forests, such as along roadsides.
Vascellum lloydianumwestern lawn puffball, western lawn puffbowl