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 L:
Laccaria amethysteo-occidentaliswestern amethyst Laccaria
Laccaria bicolorbicoloured deceiver, two-colored Laccaria
Laccaria laccatadeceiver, common Laccaria, lackluster Laccaria
Laccaria proximascurfy deceiver
Laccaria tortilistwisted deceiver
Lachnellula arida
Distribution: Broad Broad
Spores: relatively broad (6--8 x 2.5--3.5 µm) spores
Lachnum virgineumstalked hairy fairy cup
Lacrymaria lacrymabundaweeping-widow
Lactarius affinissticky milk-cap
Lactarius alnicolagolden milk-cap
Lactarius aspideoidesbright yellow milk-cap
Lactarius caespitosusgray milk-cap
Lactarius deliciosusdelicious milk-cap
Distribution: Broad North America and Europe
Lactarius deterrimusfalse saffron milkcap
Lactarius fallaxvelvety milk-cap
Habitat: Litter in spruce and mixed conifer forests along the coast and in the interior mountains
Lactarius hepaticusliver milkcap
Lactarius kauffmanii
Distribution: Western
Habitat: Occurs with spruce and birch
Lactarius luculentus
var. laetus – orange milk-cap
Lactarius occidentalisalder milkcap
Distribution: Western Northern Hemisphere
Habitat: Occurs with alders
Lactarius olivaceoumbrinustoadskin milk-cap
Lactarius olympianus
Distribution: Western
Habitat: Conifer forests in PNW and Rocky Mountains
Lactarius pallescenspale-capped violet-latex milk-cap
Lactarius pseudomucidusslimy milk-cap
Distribution: Broad Western North America
Habitat: L. pseudomucidus is frequently found in coastal and mid-elevation conifer forests, and eastward at least as far as Idaho and southward into California.
Lactarius pubescens
Habitat: In the PNW, L. plumbeus occurs frequently under planted birch trees and often persists into late fall as dry black specimens. In Europe, it is reported from birch and spruce forests and also is known as L. necator (Bulliard: Fries) P. Karsten and L. turpis (Weinmann) Fries.
var. betulae – bearded milk-cap, downy milk-cap, woolly milk-cap
var. pubescens – downy milk-cap, woolly milk-cap, bearded milkcap
Lactarius resimusyellow staining bearded milk-cap, rollrim milkcap
Lactarius rubiduscandy-cap
Lactarius rubrilacteusbleeding milk-cap
Habitat: It occurs in a variety of habitats and seems to associate primarily with pines and Douglas-fir, especially in younger stands.
Lactarius rufusred hot milk-cap, red milk-cap, rufous milkcap
Distribution: Broad
Habitat: L. rufus commonly occurs with spruce and pine, often in abundance, for example, near the edge of bogs or in other moist areas where Sitka spruce occurs. It is very common in northern conifer forests around the world.
Lactarius scrobiculatuspitted milk-cap, scrobiculate milk-cap
Distribution: Broad
Habitat: common in our conifer forests
Lactarius subflammeusorange milk-cap
Distribution: Coastal
Habitat: Coastal conifer forests
Lactarius trivialisordinary milk-cap
Lactarius uviduspurple staining milk-cap
Laetiporus conifericolachicken-of-the-woods, chicken mushroom, sulphur shelf
Habitat: living trees, logs, stumps, snags, and even utility poles.
Laricifomes officinalisagarikon, quinine cork
Laxitextum bicolortwo-tone parchment
Leccinum aurantiacumorange-capped bolete, red-capped scaber-stalk, aspen scaberstalk
Leccinum insigneaspen bolete, aspen rough-stem, aspen scaber-stalk
Habitat: Associated with aspen
Leccinum manzanitaemadrone bolete, manzanita bolete, manzanita mushroom
Habitat: Associated with Arbutus and Arctostaphylos.
Substrate: Soil.
Leccinum scabrumbrown birch-bolete, birch bolete, common scaber-stalk, birch scaberstalk
Habitat: Common in urban and suburban settings and less so in natural habitats. Occurs with birch.
Lentinellus cochleatusaniseed cockleshell, cockle-shell Lentinellus
Lentinellus montanus
Habitat: L. montanus is most common in higher elevation forests on conifer logs following snow-melt.
Spores: The spores are white, amyloid, and faintly ornamented.
Lentinellus ursinusbear Lentinellus
Lentinus strigosushairy Panus, ruddy Panus
Distribution: L. strigosus is a widely distributed species, occurring on logs and stumps of hardwoods whenever temperature and moisture conditions are suitable.
Spores: The spores are white, smooth, and non-amyloid
Lenzites betulina
Distribution: Deciduous woodlands, rarely on conifers. Northern North America.
Habitat: Deciduous woodlands and mixed forests.
Substrate: Dead hardwoods, rarely on conifers.
Leotia lubricaslippery cap, jelly-babies, common jelly-baby, ochre jelly-club, jellybaby, slippery Leotia
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
Lepista flaccidatawny funnel
Lepista irina
var. irina – blushing bowlcap
Lepista nudablewit, wood blewit
Lepista subconnexaclustered funnelcap
Lepista tardadingy bowlcap
Leptonia incanamousepee pinkgill
Leptonia parvablue-black Leptonia
Leptonia serrulatablue-toothed Leptonia, blue-edge pinkgill
Leratiomyces ceresredlead roundhead
Leratiomyces squamosusscaly ringstalk
Leucangium carthusianumOregon black truffle
Spores: The spores are smooth and very large (up to 100 μm long)
Leucoagaricus barssiigray parasol
Substrate: Sandy or loamy soils
Leucoagaricus leucothiteswhite dapperling, ma'am on motorcycle, 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
Leucopaxillus albissimuslarge white Leucopaxillus
Distribution: Widespread, though uncommon
Leucopaxillus gentianeusbitter brown Leucopaxillus
Leucophleps spinisporawhite jellied false truffle
Limacella glischraslime mushroom
Limacella illinitawhite Limacella
Limacella solidipesringed Limacella
Loreleia postiitiny navelcap
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.
Lyophyllum loricatumfrosty Lyophyllum
Lyophyllum semitale
Spores: narrowly ellipsoid spores, 6.5--9 x 3--4.5 µm
Lyophyllum shimeji
Distribution: Northern Hemisphere.
Habitat: Forested areas.
Substrate: Soil.