Covers mushrooms and other non-lichenized fungi that form multicellular fruiting bodies large enough to be seen with the unaided eye.

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Scientific names beginning with C:
Calbovista subsculptasculptured giant puffball, sculptured puffball, warted giant puffball
Calcipostia guttulata
Distribution: Widespread in North America.
Habitat: Coniferous forests.
Substrate: Wood.
Calocera corneasmall staghorn
Distribution: Broad
Habitat: Occurs on conifer wood
Calocera viscosayellow false coral, yellow tuning fork, coral jelly fungus, yellow staghorn
Distribution: It is common, but rarely abundant, in western North America, as well as in Europe and Asia.
Habitat: Occurs on rotting conifer wood in the forests
Calocybe carneapink Calocybe, pink domecap
Calocybe onychina
Habitat: Occurs with conifers such as Engelmann spruce, subalpine fir, and Douglas-fir.
Caloscypha fulgensblue-staining cup, dazzling cup, snowbank orange peel fungus
Distribution: Although most common in the western mountains, it occurs across North America, as well as in Europe and temperate Asia.
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
Cantharellus cascadensis
Distribution: Broad
Habitat: Moist woodland environments
Cantharellus formosusgolden chanterelle, Pacific chanterelle, Pacific golden chanterelle, yellow chanterelle
Description: The species epithet formosus means “finely formed” or “beautiful” and this certainly is descriptive of many of our golden chanterelles. The fruitbodies are often large for a chanterelle, and have a dull orange to brownish orange cap that readily bruises brownish and often is finely scaly. The fertile ridges often are deep and relatively thin; they are usually pale orange-yellow but may have a pinkish cast. The stipe usually is fairly slender and tapered downward.
Distribution: Broad Abundant through moist portions
Habitat: Moist ground
Cantharellus roseocanusrainbow chanterelle
Distribution: Western Moist, coastal or mountain environments
Habitat: It seems to be associated primarily with spruce, occurring with Sitka spruce and shore pine near the coast and with Engelmann spruce in the mountains.
Cantharellus subalbiduswhite chanterelle
Distribution: Western Forests containing Douglas-fir and hemlock
Habitat: Favor old-growth forests
Catathelasma imperialeimperial cat, imperial mushroom
Catathelasma ventricosumswollen-stalked cat
Distribution: Catathelasmas usually occur on calcareous soils in conifer forests, often in large local populations, forming arcs or rings of fruitbodies.
Cenangium ferruginosumpine die-back
Ceriporia spissaorange Poria
Cerrena unicolorgray polypore, mossy maze polypore
Chalciporus piperatuspepper bolete, peppery bolete
Distribution: It is widespread and can be rather common in some years, but usually is not abundant.
Cheilymenia fimicolaeyelash dung cup
Distribution: Worldwide
Cheimonophyllum candidissimumwhite oysterette
Chlamydopus meyenianusdesert stalked puffball
Chlorociboria aeruginascensgreen cups, green stain, green wood-cups
Distribution: Broad Across North America, Europe, and Asia
Spores: spores (5--8 x 1--2 µm)
Chlorophyllum brunneumshaggy parasol
Choiromyces alveolatushard truffle
Chondrostereum purpureumsilver leaf fungus, silver-leaf fungus
Chromosera cyanophylla
Distribution: North America and Europe C. cyanophylla usually grows in small groups and can be found in fall on rain-soaked conifer logs, as well as spring and early summer on wet conifer logs exposed by melting snow.
Chroogomphus pseudovinicolorrobust pine-spike
Chroogomphus tomentosuswoolly pine spike
Distribution: Occurs only in western North America.
Habitat: Often is found in mixed conifer forests that lack pines.
Chroogomphus vinicolorpine spike, wine-cap
Chrysomphalina chrysophyllagolden-gilled Chrysomphalina, golden-gilled Gerronema, goldgill navelcap
Chrysomphalina grossulaWynne's Omphalina
Ciboria rufofusca
Substrate: cone scales of true firs
Spores: spores are smooth and ovoid (5--7.5 x 3--3.5 µm)
Clavaria acutapointed club
Habitat: Clavaria acuta usually occurs on bare soil in somewhat disturbed areas.
Clavaria rosearosy club coral
Clavariadelphus ligulastrap coral, strap-shaped coral
Clavariadelphus sachalinensisstrap-shaped pestle
Distribution: Widespread in western and northern North America.
Habitat: Often these species can be found in large troops under conifers.
Clavariadelphus truncatusflat-top coral, flat-topped coral, truncate club coral
Distribution: Broad throughout the Northern Hemisphere
Habitat: Occurs with conifers
Claviceps purpureaergot, spurred rye
Clavulina amethystinaviolet-branched coral
Clavulina cinereagray coral, ashy coral mushroom
Clavulina coralloidescrested coral, wrinkled coral, white-crested coral fungus
Clavulina rugosawrinkled coral
Clavulinopsis laeticolorhandsome club, golden fairy-club
Distribution: A widespread species, occurring across North America and in Europe and parts of Asia.
Clitocybe albirhizasnowmelt Clitocybe, white-stranded Clitocybe
Distribution: Western snowbank mushrooms
Clitocybe alexandriAlexander's funnel
Clitocybe cerussatalead-white Clitocybe
Clitocybe deceptivaanise mushroom
Clitocybe dilatatacrowded white Clitocybe
Clitocybe ditopamealy frosted funnel
Clitocybe fragransfragrant funnel, slim anise mushroom
Clitocybe gibbafunnel Clitocybe, common funnel, funnel-cap
Clitocybe glacialissnowbank Lyophyllum
Distribution: Western snowbank mushroom
Clitocybe maximalarge white Clitocybe
Clitocybe nebulariscloudy Clitocybe, clouded funnel
Distribution: A variety of forests, often appearing along woodland trails late in fall
Clitocybe odoraanise-scented Clitocybe, aniseed funnel, blue-green anise mushroom
Clitocybe phyllophilafrosty funnel
Clitocybe rivulosasweat-producing Clitocybe
Clitocybe sclerotoideaparasitic Clitocybe
Clitocybe sinopicabrick-red Clitocybe
Distribution: Any time of year, often on bare soil
Clitocybe squamulosasmall scaly Clitocybe
Distribution: Broad Widespread, often common, and variable species
Clitocybe subditopoda
Distribution: Common in Pacific Coast conifer forests
Clitocybula atrialbablack and white Clitocybula
Habitat: C. atrialba is a western species that occurs singly on the (sometimes buried) wood of alder and perhaps other hardwoods.
Substrate: Wood or woody debris
Spores: whitish amyloid spores
Clitopilus prunulusthe miller, sweetbread mushroom
Distribution: Widely distributed in conifer as well as deciduous hardwood forests.
Collybia cirrhatapiggyback shanklet
Collybia cookeisplitpea shanklet
Collybia tuberosaappleseed coincap, tuberous Collybia, lentil shanklet
Coltricia cinnamomeafairy stool
Coltricia perennistiger's eye
Habitat: Occurs on the ground or on woody debris and is most characteristic of disturbed areas such as trail edges and roadsides in conifer forests.
Coniophora puteanawet-rot
Conocybe teneracommon cone-head, brown dunce-cap
Coprinellus disseminatusfairy bonnet, crumble cap, little helmet, fairy inkcap
Coprinellus micaceusglistening inkcap, glistening inky-cap, mica-cap
Habitat: Hardwood stumps, buried roots, and other organic debris.
Coprinopsis atramentariatippler's bane, common inkcap, alcohol inky, inky-cap
Distribution: Broad
Habitat: Occurs widely in many natural and disturbed habitats, including gardens and other urban settings
Coprinopsis cinereagray shag
Coprinopsis lagopides
Habitat: Burned areas.
Substrate: Humus or burned wood.
Coprinopsis niveasnowy inkcap
Habitat: Grows on dung, primarily of cattle.
Coprinus comatusshaggy inkcap, lawyer's-wig, shaggy-mane
Coriolopsis gallicabrownflesh bracket
Cortinarius acutus
Distribution: C. acutus occurs in nutrient-poor conifer forests, often on moist sites in litter, and can be found throughout the north temperate regions.
Cortinarius alboviolaceussilvery-violet Cortinarius, pearly webcap
Cortinarius aurantiobasis
Habitat: C. aurantiobasis tends to occur in wetter habitats with conifers, often near western hemlock and/or Sitka spruce, and frequently among sphagnum or other mosses.
Cortinarius callisteustawny webcap
Cortinarius calochrous
ssp. coniferarum – beautiful Cortinarius
Cortinarius camphoratusgoatcheese webcap
Cortinarius caperatusgypsy, gypsy mushroom
Distribution: Common in certain years in the PNW, but becomes less abundant inland and to the south
Cortinarius cinnamomeuscinnamon Cort, cinnamon webcap
Cortinarius clandestinus
Habitat: Western conifer forests, extending from lower elevations into the higher mountains
Cortinarius collinitusbelted slimy Cortinarius
Cortinarius crassusstout webcap
Cortinarius croceus
Distribution: Common and widespread
Habitat: C. croceus occurs throughout north temperate forests and into alpine and arctic areas. It grows with various conifers, as well as hardwoods including beech, birch, and willow.
Cortinarius cupreorufuscopper-red webcap
Cortinarius cyanitesblushing webcap
Cortinarius decipienssepia webcap
Cortinarius everniussilky webcap
Cortinarius gentilisdeadly Cortinarius, goldband webcap
Distribution: Broad
Habitat: C. gentilis has a broad ecological range, occurring in moist environments as well as drier, upland conifer sites. During the summer in the western mountains it can be very common, often fruiting in groups, sometimes from well rotted woody debris.
Cortinarius glaucopusbulbous Cortinarius, blue-foot webcap
Cortinarius hinnuleusearthy webcap
Cortinarius infractussooty olive Cortinarius, bitter webcap
Cortinarius iodesspotted Cort, viscid violet Cort
Cortinarius lanigerbrown Cortinarius, hoary webcap, woolly webcap
Distribution: Widespread, but variable in its fruiting, in some years being rather common and in others being absent.
Habitat: C. laniger is characteristic of boreal and montane conifer forests.
Cortinarius montanus
Distribution: Cortinarius montanus can be very common and widespread, but often occurs as one or a few fruitbodies at a time.
Habitat: Common in older, cool, moist conifer forests.
Cortinarius mucifluusslimy webcap
Cortinarius mucosusslimy Cortinarius, orange webcap
Cortinarius muscigenus
Distribution: C. muscigenus varies in abundance from year to year, and in some seasons can be very common.
Habitat: mid- to high elevation conifer forests
Cortinarius mutabilispurple-staining Cortinarius
Habitat: Occurs in a variety of habitats with different conifers and is more frequent in moist areas. Most commonly found along the coast, especially with Sitka spruce.
Cortinarius neosanguineusblood-red Cortinarius, northern red-dye, blood-red webcap
Cortinarius olympianus
Distribution: Varies in abundance from year to year
Habitat: Low to mid-elevation conifer forests
Cortinarius pallidifoliuspale Cortinarius
Cortinarius percomisfragrant Cortinarius
Cortinarius pluvius
Origin: Native
Cortinarius pseudobulliardoides
Distribution: Northern hemisphere.
Habitat: Coniferous forests, under Abies, Picea, Pinus and Tsuga.
Substrate: Soil.
Cortinarius purpurascensbruising webcap
Cortinarius rubellusdeadly webcap
Cortinarius salor
Habitat: C. salor is found in a wide range of forest types
Cortinarius smithiiwestern red-capped Cortinarius, western red-dye
Cortinarius subtortusincense webcap
Cortinarius talushoney webcap
Cortinarius traganuspungent Cort, lilac conifer Cortinarius, gassy webcap
Distribution: Broad
Habitat: Abundant in the far-western mountane and boreal regions, but is much less frequent in the Rocky Mountains.
Cortinarius trivialisearly Cortinarius
Cortinarius vanduzerensispointed Cortinarius
Distribution: Common
Habitat: Coastal conifer forests from northern California to southern Canada.
Cortinarius variicolorcontrary webcap
Cortinarius variosimilis
Distribution: Broad
Habitat: Western North America, occurring both in Rocky Mountain spruce-fir forests and the forests of the Cascades and coastal ranges.
Cortinarius vibratilis
Habitat: Common in conifer forests
Cortinarius violaceusviolet Cort, violet Cortinarius, violet webcap
Distribution: In some years it is difficult to find but in general it is commonly encountered, but usually in small numbers.
Habitat: Widespread in older forests in PNW region, but much less common in the interior mountains than nearer the coast.
Cotylidia diaphanastalked Stereum
Cotylidia pannosawoolly rosette
Craterellus cornucopioidesangel-of-death, black chanterelle, fairy's loving cup, horn-of-plenty, black trumpet, trumpet-of-death
Craterellus tubaeformisfunnel chanterelle, trumpet chanterelle, winter chanterelle, winter craterelle, yellow-foot, yellowlegs
Distribution: Western West Coast
Habitat: Moist forest
Substrate: Mossy rotten wood
Crepidotus epibryuslittle white crep
Crepidotus mollisjelly crep, flabby Crepidotus, peeling oysterling
Crucibulum laevecommon bird's nest fungus, yellow bird's nest fungus, common birds' nest, white-egg bird's nest
Cryptoporus volvatuscryptic globe fungus, veiled polypore
Distribution: Occurring on both sides of the Cascades crest in Washington. Alaska to California, east across much of North America to the Atlantic Coast.
Origin: Native
Cudonia circinanscommon Cudonia
Distribution: Widespread in North America, Europe, and Asia.
Cudoniella clavus
Distribution: It is widespread, but not particularly common.
Substrate: C. clavus occurs in spring and early summer on very wet plant debris, such as cones and twigs, often at least partly submerged in running water.
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.
Cyphellostereum laeve
Substrate: It occurs on mosses, usually hair caps (Polytrichum spp.) and is common in late summer and fall in our moist conifer forests, especially along trails and other areas where mossbeds are found.
Spores: colorless, non-amyloid, smooth, rounded, and 4--5 x 2.5--3 μm
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
Cytidia salicinascarlet-splash