''Leucocoprinus brunneoluteus'' is a species of

mushroom A mushroom or toadstool is the fleshy, spore-bearing fruiting body of a fungus, typically produced above ground, on soil, or on its food source. ''Toadstool'' generally denotes one poisonous to humans. The standard for the name "mushroom" is t ...

producing

fungus A fungus ( : fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, separately from th ...

in the family

Agaricaceae The Agaricaceae are a family of basidiomycete fungi and include the genus ''Agaricus'', as well as basidiomycetes previously classified in the families Tulostomataceae, Lepiotaceae, and Lycoperdaceae. Taxonomy The family Agaricaceae was publishe ...

Taxonomy

''L. brunneoluteus'' was classified by the mycologists Marina Capelari and Luciana Jandelli Gimenes in 2004.

Description

''Leucocoprinus brunneoluteus'' is a small dapperling mushroom with thin yellow flesh that is superficially similar to ''

Leucocoprinus birnbaumii ''Leucocoprinus birnbaumii'' is a species of gilled mushroom in the family Agaricaceae. It is common in the tropics and subtropics. However, in temperate regions, it frequently occurs in greenhouses and flowerpots, hence its common names of flowe ...

'' but with a more distinctly pronounced brown umbo. Cap: 1.2-4.5 cm wide, subconical when immature expanding to convex and finally planar with slightly uplifting cap margins and a pronounced dark brown umbo. The cap surface is otherwise bright yellow with dark brown scales that become sparser away from the umbo and towards the edges. The plicate-striate striations extend from the margins almost to the centre disc. Stem: 3.5-9cm tall and 2-7mm thick with a slightly bulbous base and tapering at the top of the stem. The surface is the same yellow hue as the cap and gills and the interior is hollow. The yellow-brown stem ring is located towards the top of the stem (superior) however it may disappear with maturity. Gills: Free and remote from the stem, crowded and yellow. Spore print: White. Spores: Elliptical to ovoid with a germ pore. Dextrinoid. 10-12 x 7-9 μm. It is described as being similar to ''L. birnbaumii'' but differing by the distinct brown colour of the umbo as well as the more membranous quality of the mushroom which is similar to the very thin skinned and fragile ''

Leucocoprinus fragilissimus ''Leucocoprinus fragilissimus'', commonly known as the fragile dapperling, is a species of gilled mushroom in the family Agaricaceae. Taxonomy As with many of the most well known ''Leucocoprinus'' species the taxonomic history of this species i ...

.''

Habitat and distribution

''L. brunneoluteus'' has been documented from

South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the southe ...

. The specimens studied by Capelari and Gimenes were collected from a state park near

São Paulo São Paulo (, ; Portuguese for 'Saint Paul') is the most populous city in Brazil, and is the capital of the state of São Paulo, the most populous and wealthiest Brazilian state, located in the country's Southeast Region. Listed by the GaWC a ...

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

where they were found growing on the ground under

Pine A pine is any conifer tree or shrub in the genus ''Pinus'' () of the family Pinaceae. ''Pinus'' is the sole genus in the subfamily Pinoideae. The World Flora Online created by the Royal Botanic Gardens, Kew and Missouri Botanical Garden accep ...

trees.''''

Etymology

The name refers to the colour of the cap and the scales. ''Brunneoluteus'' derives from the Latin ''brunneus'' meaning dark brown and ''luteus'' meaning yellow, yellow-orange.

References

{{Taxonbar, from=Q107989739 Agaricaceae Leucocoprinus Fungi described in 2004 Fungi of South America