''Russula albonigra'', commonly known as the blackening russula,
is a member of the genus ''
Russula'', all of which are collectively known as brittlegills. It grows under both
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 ...
and
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 ...
trees.
Taxonomy
First described by the mycologist
Julius Vincenz von Krombholz in 1838, its
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 ...
comes from
Latin
Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...
''albus'' and ''niger'', which mean ''white'' and ''black''.
Description
The
cap is convex to infundibuliform, whitish, sticky. The
stipe is dusky, or white above, pale grey-ochreous towards the base. The
gills are
decurrent, crowded, thick, unequal, connected by veins, dusky whitish or yellowish. The
flesh is white, turns black or sooty. The taste is somewhat bitter and unpleasant to mild.
See also
*
List of ''Russula'' species
References
albonigra
Fungus species
{{Russulales-stub