''Suillus cothurnatus'' is a species of
mushroom in the genus ''
Suillus''. Found in Malaysia, Brazil, and North America, it was first
described scientifically by mycologist
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 ...
in 1945.
Description
The
cap is obtuse to convex, and sometimes develops a broad
umbo. The cap margin is initially turned inward, and usually has remnants of the partial veil hanging off. The cap surface is smooth, sticky, with a variable color ranging from yellow to yellow-brown to yellow-orange to cinnamon to olive brown to grayish brown or dark brown. The
flesh is marbled orangish and pale yellow, and when cut or otherwise injured, it will stain dark purple-drab. The odor of the fruit bodies ranges from fragrant to indistinct, and the taste is indistinct. The pore surface on the underside of the cap is initially pale yellow to orange-yellow, but it becomes brownish yellow when mature. The pores, which number 1 or 2 per millimeter, are irregular to radially elongated. The tubes comprising the pore layer are roughly deep. The
stem
Stem or STEM may refer to:
Plant structures
* Plant stem, a plant's aboveground axis, made of vascular tissue, off which leaves and flowers hang
* Stipe (botany), a stalk to support some other structure
* Stipe (mycology), the stem of a mushro ...
measure long by thick, and it is nearly equal in width throughout or slightly larger near the base. It is solid (i.e. not hollow) with a dry surface that is covered with scattered brownish glandular dots on a whitish to yellowish to brownish background color. It has a thick, baggy
partial veil that is whitish and somewhat rubbery in texture. The partial veil is slimy on the outer layer, and forms a band-like
ring
Ring may refer to:
* Ring (jewellery), a round band, usually made of metal, worn as ornamental jewelry
* To make a sound with a bell, and the sound made by a bell
:(hence) to initiate a telephone connection
Arts, entertainment and media Film and ...
on the stem with a flaring lower edge. The
mycelium at the base of the stem is salmon-colored.
''Suillus cothurnatus'' produces a brown
spore print.
Spore
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 ...
s are roughly elliptical to oblong to somewhat cylindrical, smooth, and measure 8–10 by 2.5–3.5
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 ...
.
Fruit bodies are
edible.
They are used in
mushroom dyeing to produce colors such as beige, light brown, or brownish orange, depending on the
mordant used.
Habitat and distribution
The fruit bodies of ''Suillus cothurnatus'' grow scattered or in groups on the ground in sandy soil near
pine,
especially two-needled pine such as
red pine and
jack pine.
In the United States, its range extends from
Texas to
Florida, and north to
North Carolina.
The species is also present in Mexico,
and has been
introduced to Brazil.
It has also been recorded from the
Cameron Highlands in Malaysia.
See also
*
List of North American boletes
References
External links
*
{{Taxonbar, from=Q7635491
cothurnatus
Fungi of Asia
Fungi of North America
Fungi of Brazil
Edible fungi
Fungi described in 1945
Taxa named by Rolf Singer