''Buchwaldoboletus sphaerocephalus'' is a species of

bolete {{refimprove, date=July 2020 A bolete is a type of mushroom, or fungal fruiting body. It can be identified thanks to a unique mushroom cap. The cap is clearly different from the stem. On the underside of the cap there is usually a spongy surfa ...

fungus in the family

Boletaceae The Boletaceae are a family of mushroom-forming fungi, primarily characterised by small pores on the spore-bearing hymenial surface (at the underside of the mushroom), instead of gills as are found in most agarics. Nearly as widely distributed ...

native to

Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia ...

North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...

and

Southwest Australia Southwest Australia is a biogeographic region in Western Australia. It includes the Mediterranean-climate area of southwestern Australia, which is home to a diverse and distinctive flora and fauna. The region is also known as the Southwest Aus ...

Taxonomy and naming

Originally described by

Jean-Baptiste Barla Jean-Baptiste Barla (3 May 1817, Nice – 6 November 1896) was a French botanist. Barla was a man of independent means and dedicated himself to investigate the fungi and orchids of the South of France. "Cette végétation exceptionelle, doit ...

as ''Boletus sphaerocephalus'' in 1859, it was given its current name by

Roy Watling Roy Watling , PhD., DSc, FRSE, F.I.Biol., C.Biol., FLS (born 1938) is a Scottish mycologist who has made significant contributions to the study of fungi both in identification of new species and correct taxonomic placement, as well as in fung ...

& Tai Hui Li in 2004.

Description

The

cap A cap is a flat headgear, usually with a visor. Caps have crowns that fit very close to the head. They made their first appearance as early as 3200 BC. Caps typically have a visor, or no brim at all. They are popular in casual and informal se ...

is convex, glabrous, silky and tomentose, viscid when wet. Its color is yellow to yellow-fulvus. The pores are small, tubes short, adnate ventricose, and

context Context may refer to: * Context (language use), the relevant constraints of the communicative situation that influence language use, language variation, and discourse summary Computing * Context (computing), the virtual environment required to su ...

yellow, bluing when bruised. The stipe is fleshy, ventricose, and there is a yellow

mycelium Mycelium (plural mycelia) is a root-like structure of a fungus consisting of a mass of branching, thread-like hyphae. Fungal colonies composed of mycelium are found in and on soil and many other substrate (biology), substrates. A typical single ...

at the stipe base.

Spores In biology, a spore is a unit of sexual or asexual reproduction that may be adapted for dispersal and for survival, often for extended periods of time, in unfavourable conditions. Spores form part of the life cycles of many plants, algae, f ...

are ovoid, pale ochraceous and measure 5.5–7.2 by 3.3–4.5

µm The micrometre ( international spelling as used by the International Bureau of Weights and Measures; SI symbol: μm) or micrometer (American spelling), also commonly known as a micron, is a unit of length in the International System of Unit ...

Distribution and ecology

''Buchwaldoboletus sphaerocephalus'' has been recorded in Europe, North America and Southwest Australia, growing in clusters on sawdust of pines, often in enclosed areas.

References

External links

* {{Taxonbar, from=Q10684582 Boletaceae Fungi described in 1859 Fungi of Europe Fungi of North America Fungi of Australia