''Buchwaldoboletus hemichrysus'' is a species of
bolete fungus in the family
Boletaceae native to USA. Found on pine wood, it has a convex bright golden-yellow
cap, rich red-brown pores, and an ochraceous
spore print. Its edible, but the flesh is described as "tasteless".
Taxonomy and naming
Originally described by
Miles Joseph Berkeley and
Moses Ashley Curtis in 1873 as ''Boletus hemichrysus'', it was given its current name by mycologist
Albert Pilát
Albert Pilát (November 2, 1903 – May 29, 1974) was a Czech botanist and mycologist. He studied at the Faculty of Science at Charles University, under the guidance of Professor Josef Velenovský. In 1930, he joined the National Museum, eventuall ...
in 1969.
He placed it in the new genus ''Buchwaldoboletus'' on account of its occurrence on wood (rather than in the ground),
decurrent and arcuate pores, the 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 base of the
stipe, the blueing
flesh and lack of hyphal
clamps
Clamp may refer to:
Tools and devices
*Brick clamp, an early method of baking bricks
*Clamp (tool), a device or tool used to hold objects in a fixed relative position (many types listed)
**C-clamp
**C-clamp (stagecraft)
**Riser clamp, a device u ...
.
Description
The
cap is bright golden yellow, convex, and can reach 6–8 inches in diameter. The flesh may stain blue where it has been cut or bruised. The pores are small, and the pore surface is red-brown in maturity, staining bluish with injury. The stipe is irregular, varying in thickness, sometimes 1½ inches in diameter, yellowish tinted with red. 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.
The mushroom produces an ochraceous
spore print.
Spores measure 7–9,5 × 3–3,5
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 ...
.
References
External links
*
{{Taxonbar, from=Q10437207
Boletaceae
Fungi described in 1873
Fungi of North America