''Tylopilus peralbidus'' is a
bolete fungus in the family
Boletaceae native to the eastern United States.
Taxonomy
The species was first
described in 1936 by
Wally Snell
Walter Henry "Doc" Snell (May 19, 1889 – July 23, 1980) was a pinch-hitter/catcher in Major League Baseball who played briefly for the Boston Red Sox during the season. Following this brief baseball career he became a successful mycologist ...
and
Henry Curtis Beardslee as a species of ''
Boletus''.
William Alphonso Murrill
William Alphonso Murrill (October 13, 1869 – December 25, 1957) was an American mycologist, known for his contributions to the knowledge of the Agaricales and Polyporaceae. In 1904, he became the assistant Curator at the New York Botanical Ga ...
transferred it to ''
Tylopilus'' in 1938.
Rolf Singer
Rolf Singer (June 23, 1906 – January 18, 1994) was a Germany, German-born mycologist and one of the most important Taxonomy (biology), taxonomists of gilled mushrooms (agarics) in the 20th century.
After receiving his Ph.D. at the University ...
described a variety ''Tylopilus peralbidus'' var. ''rhodoconius'' in 1945, but this was renamed as an independent species, ''
Tylopilus rhodoconius'', in 1998.
Description
The
fruit bodies
The sporocarp (also known as fruiting body, fruit body or fruitbody) of fungi is a multicellular structure on which spore-producing structures, such as basidia or asci, are borne. The fruitbody is part of the sexual phase of a fungal life cyc ...
have caps that are initially convex before flattening out in maturity (sometimes developing a central depression); they reach a diameter of . The cap surface is dry, smooth to slightly hairy, while the color ranges from white initially to
tan to brownish in maturity. Brownish stains develop where the cap has been bruised. On the cap underside, the pores are initially whitish, but turn
buff
Buff or BUFF may refer to:
People
* Buff (surname), a list of people
* Buff (nickname), a list of people
* Johnny Buff, ring name of American world champion boxer John Lisky (1888–1955)
* Buff Bagwell, a ring name of American professional wr ...
to pinkish as the spores mature. The pores are circular to angular, numbering 1 to 3 per millimetre, and the tubes are deep. The
stipe measures long by thick, and is either more or less equal in width throughout, or tapers slightly at either end. Its color is whitish to brownish.
The
spore print is cream-buff. Spores are smooth, cylindrical to somewhat club-shaped, and measure 7–12 by 2.3–3.5
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 ...
. The flesh quickly stains dark grey to violet grey when a drop of
iron(II) sulfate (FeSO
4) solution is applied;
potassium hydroxide
Potassium hydroxide is an inorganic compound with the formula K OH, and is commonly called caustic potash.
Along with sodium hydroxide (NaOH), KOH is a prototypical strong base. It has many industrial and niche applications, most of which exp ...
(KOH) solution turns the flesh yellow to yellow-ochre.
Habitat and distribution
Fruit bodies of ''Tylopilus peralbidus'' grow singly to scattered on the ground under
oak
An oak is a tree or shrub in the genus ''Quercus'' (; Latin "oak tree") of the beech family, Fagaceae. There are approximately 500 extant species of oaks. The common name "oak" also appears in the names of species in related genera, notably ''L ...
s, or occasionally with pine. Preferred habitats include shaded lawns and along roads. Found in the eastern United States, the bolete has been recorded from
North Carolina
North Carolina () is a state in the Southeastern region of the United States. The state is the 28th largest and 9th-most populous of the United States. It is bordered by Virginia to the north, the Atlantic Ocean to the east, Georgia and So ...
south to
Florida
Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, and to ...
, west to
Texas
Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2 ...
. It fruits from May to October.
See also
*
List of North American boletes
References
External links
*
{{Taxonbar, from=Q15637242
peralbidus
Fungi described in 1938
Fungi of the United States
Fungi without expected TNC conservation status
Fungus species