Russula Mustelina on:
[Wikipedia]
[Google]
[Amazon]
''Russula mustelina'', commonly known as the russet brittlegill, is a
The fruit bodies appear in autumn and can be partly submerged in the soil. The cap is wide, occasionally reaching , with a shape ranging from convex (in young specimens) to flattened, sometimes with a shallow central depression. The cap surface is dry and can be slightly sticky when wet. The colour is pale yellow to yellow-brown with wine-coloured cap margin and can be discoloured with wine-coloured splotches with age. The white flesh is thick under the cap and has a mild taste. The cream gills have an attachment to the
basidiomycete
Basidiomycota () is one of two large divisions that, together with the Ascomycota, constitute the subkingdom Dikarya (often referred to as the "higher fungi") within the kingdom Fungi. Members are known as basidiomycetes. More specifically, Basi ...
mushroom
A mushroom or toadstool is the fleshy, spore-bearing fruiting body of a fungus, typically produced above ground, on soil, or on its food source. ''Toadstool'' generally denotes one poisonous to humans.
The standard for the name "mushroom" is t ...
of the genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
'' Russula'' native to Europe and North America. Swedish mycologist Elias Magnus Fries
Elias Magnus Fries (15 August 1794 – 8 February 1878) was a Swedish mycologist and botanist.
Career
Fries was born at Femsjö (Hylte Municipality), Småland, the son of the pastor there. He attended school in Växjö.
He acquired ...
described the species in his 1838 book ''Epicrisis Systematis Mycologici seu Synopsis Hymenomycetum''.
Description
The fruit bodies appear in autumn and can be partly submerged in the soil. The cap is wide, occasionally reaching , with a shape ranging from convex (in young specimens) to flattened, sometimes with a shallow central depression. The cap surface is dry and can be slightly sticky when wet. The colour is pale yellow to yellow-brown with wine-coloured cap margin and can be discoloured with wine-coloured splotches with age. The white flesh is thick under the cap and has a mild taste. The cream gills have an attachment to 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 ...
ranging from adnate
Adnate may refer to:
* Adnation, in botany, the fusion of two or more whorls of a flower
* Adnate, in mycology, a classification of lamellae (gills)
* Conjoined twins
Conjoined twins – sometimes popularly referred to as Siamese twins – are ...
to adnexed
In mycology, a lamella, or gill, is a papery hymenophore rib under the cap of some mushroom species, most often agarics. The gills are used by the mushrooms as a means of spore dispersal, and are important for species identification. The atta ...
. Fruit bodies have almost no odour. The hard white stem measures long by thick, and is roughly the same width throughout its length, although it can be a little thicker near the base. Its surface is dry and smooth.
''Russula mustelina'' produces a yellowish spore print. The roundish spores have dimensions of 7.5–10.5 by 6.5–9 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 ...
, with a reticulate (web-like) and ridged surface marked by occasional warts.
'' Russula basifurcata'' is a similar species with smaller fruit bodies associated with oak trees at lower altitudes. The gills are forked near the stem.
Ecology
''Russula mustelina'' occurs in coniferous forests above in theSierra Nevada
The Sierra Nevada () is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies primarily ...
and Cascade Range
The Cascade Range or Cascades is a major mountain range of western North America, extending from southern British Columbia through Washington and Oregon to Northern California. It includes both non-volcanic mountains, such as the North Cascades, ...
in western North America. It is a component of rare peat bog habitat in the eastern Carpathians in Romania, where it is associated with European spruce ('' Picea abies''). It also grows in the Ivory Coast
Ivory Coast, also known as Côte d'Ivoire, officially the Republic of Côte d'Ivoire, is a country on the southern coast of West Africa. Its capital is Yamoussoukro, in the centre of the country, while its largest city and economic centre is ...
where it is picked and eaten.
See also
* List of ''Russula'' speciesReferences
{{Taxonbar, from=Q352153 mustelina Fungi described in 1838 Fungi of North America Taxa named by Elias Magnus Fries Fungi of Europe Fungi of Africa Fungus species