''Xeromphalina kauffmanii'' is a species of
agaric fungus in the family
Mycenaceae
The Mycenaceae are a family of fungi in the order Agaricales. According to the ''Dictionary of the Fungi'' (10th edition, 2008), the family contains 10 genera and 705 species. This is one of several families that were separated from the Tricholom ...
. Found in North America, Costa Rica, and Japan, it was described as new to science in 1953. The type collection was made in
Chelsea, Michigan
Chelsea is a city in Washtenaw County in the U.S. state of Michigan. The population was 5,467 at the 2020 census.
History
The area was first settled as early as 1820 within the Michigan Territory by settler Cyrus Beckwith. It would be organized ...
, in June 1940. The
specific epithet
In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...
''kauffmanii'' honors American mycologist
Calvin Henry Kauffman
Calvin Henry Kauffman (March 1, 1869–1931) was an American botanist and mycologist. A fellow of the American Association for the Advancement of Science, he was affiliated with the University of Michigan from 1904 until his death, and was known ...
.
Description
The
cap of the
fruit body
In botany, a fruit is the seed-bearing structure in flowering plants that is formed from the Ovary (plants), ovary after flowering plant, flowering.
Fruits are the means by which flowering plants (also known as angiosperms) disseminate their ...
is convex, sometimes with a central depression at maturity, and measures . Its color is initially bright rusty orange, changing to bright orange to cinnamon in maturity. The narrow, light yellow to cream
gills. The reddish stipe measures by 0.8–2 mm wide. It has yellowish fibrils surrounding its base, as well as white
rhizomorphs attaching the base to the
substrate. The mushroom has thin, cream-colored
flesh with an indistinct odor and a taste that is initially mild before becoming slightly bitter.
The
spore print is white.
Spores are elliptical, thin-walled, and
amyloid, measuring 4.2–6 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 ...
. The
basidia (spore-bearing cells) are club-shaped, four-spored, and measure 21–25 by 4–5 µm.
Similar species
''
Xeromphalina campanella'' is a lookalike species that grows on rotting
conifer
Conifers are a group of conifer cone, cone-bearing Spermatophyte, seed plants, a subset of gymnosperms. Scientifically, they make up the phylum, division Pinophyta (), also known as Coniferophyta () or Coniferae. The division contains a single ...
wood.
Habitat and distribution
''Xeromphalina kauffmanii'' fruits in dense groups or clusters on rotting
hardwood
Hardwood is wood from dicot trees. These are usually found in broad-leaved temperate and tropical forests. In temperate and boreal latitudes they are mostly deciduous, but in tropics and subtropics mostly evergreen. Hardwood (which comes from ...
logs and stumps. Fruiting occurs from summer to autumn in eastern North America. The fungus has also been recorded from Costa Rica and Japan.
References
External links
*
{{Taxonbar, from=Q10722420
Fungi described in 1953
Fungi of Asia
Fungi of Central America
Mycenaceae