Russula gracillima

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Russula gracillima
Russula gracillima.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Russulales
Family: Russulaceae
Genus: Russula
Species:
R. gracillima
Binomial name
Russula gracillima
Jul.Schäff. (1931)
Russula gracillima
Information icon.svg
Gills icon.png Gills on hymenium
Convex cap icon.svgFlat cap icon.svg Cap is convex or flat
Decurrent gills icon2.svg Hymenium is decurrent
Bare stipe icon.svg Stipe is bare
Transparent spore print icon.svg
Spore print is cream
Mycomorphbox Question.pngEdibility is unknown

The mushroom Russula gracillima, commonly known as the slender brittlegill, is a member of the genus Russula , whose members are commonly known as brittlegills. It is a small, pale, long stemmed brittlegill associated mainly with birch and is occasional in Europe, Asia, and North America.

Contents

Taxonomy

It was first described by the German mycologist Jacob Christian Schaeffer during the 18th century. The specific epithet comes from the Latin adjective gracilis, meaning thin, or slender.

Description

The cap is 2–6 cm in diameter. Usually it is dull greenish or olive at the centre, and with a pink margin, although it can be solely either of these colours, or sometimes pale violet. At first, it is convex, but later flattens, and sometimes has a small central boss (umbo). The cap skin peels from one third to a half, and more mature specimens often have a furrowed margin. The fragile, white or pale greyish-rose stipe is long for the size of the cap. The gills are slightly decurrent, and pale cream giving a spore print of the same colour. They have no nicks, or notches on their free edges. The flesh is white and tastes moderately hot. [1]

Similar species are Russula betularum which is frequently found near birch trees, and although usually paler can be mistaken for washed out specimens of R.  racillima. Also, Russula fragilis is very similar, and grows in the same locations. It is usually darker, and more purplish, and has nicks (serrations) on the gill edges which are distinctive under a hand lens.

Distribution and habitat

Russula gracillima appears occasionally in summer to late autumn, [1] usually growing in small groups with birch, or sometimes willow in damp places. [2] It is widespread in the northern temperate zones in Europe, Asia, and North America.

Edibility

The edibility of Russula gracilis is unknown. [1]

See also

Related Research Articles

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Russula emetica, commonly known as the sickener, emetic russula, or vomiting russula, is a basidiomycete mushroom, and the type species of the genus Russula. It has a red, convex to flat cap up to 8.5 cm (3.3 in) in diameter, with a cuticle that can be peeled off almost to the centre. The gills are white to pale cream, and closely spaced. A smooth white stem measures up to 10.5 cm (4.1 in) long and 2.4 cm (0.9 in) thick. First described in 1774, the mushroom has a wide distribution in the Northern Hemisphere, where it grows on the ground in damp woodlands in a mycorrhizal association with conifers, especially pine.

<i>Russula xerampelina</i> Species of fungus

Russula xerampelina, also commonly known as the shrimp russula, crab brittlegill, or shrimp mushroom, is a basidiomycete mushroom of the brittlegill genus Russula. Two subspecies are recognised. The fruiting bodies appear in coniferous woodlands in autumn in northern Europe and North America. Their caps are coloured various shades of wine-red, purple to green. Mild tasting and edible, it is one of the most highly regarded brittlegills for the table. It is also notable for smelling of shellfish or crab when fresh.

<i>Russula ochroleuca</i> Species of fungus

Russula ochroleuca is a member of the genus Russula. A group that have become known as brittlegills. It has been commonly known as the common yellow russula for some years, and latterly the ochre brittlegill. It is widespread, and common in mixed woodland.

<i>Russula claroflava</i> Species of fungus

Russula claroflava, commonly known as the yellow russula, yellow swamp russula or yellow swamp brittlegill, is a basidiomycete mushroom of the genus Russula. It is found in wet places under birch and aspen woodlands across Europe and North America. It has a yellow cap, white gills and stipe and bruises grey. It is mild-tasting and regarded as good to eat.

<i>Russula nigricans</i> Species of fungus

Russula nigricans, commonly known as the blackening brittlegill or blackening russula, is a gilled mushroom found in woodland in Europe. It gains both its common and scientific name from its propensity to turn black from cutting or bruising.

<i>Russula sardonia</i> Species of fungus

Russula sardonia, commonly known as the primrose brittlegill, is a mushroom of the genus Russula, which are commonly known as brittlegills. The fruiting body, or mushroom, is a reddish-purple, the colour of blackberry juice, and is found in coniferous woodland in summer and autumn. It is inedible, and like many inedible members of the genus, has a hot, peppery taste.

<i>Russula sanguinaria</i> Species of fungus

Russula sanguinaria, commonly known as the bloody brittlegill or rosey russula, is a strikingly coloured mushroom of the genus Russula, which has the common name of brittlegills. It is bright blood-red, inedible, and grows in association with coniferous trees. It was previously widely known as Russula sanguinea.

<i>Russula betularum</i> Species of fungus

Russula betularum is a small, very pale member of the Russula (brittlegills) genus of mushrooms. It is usually white to very pale pink, inedible, and grows with birch trees. It is commonly known as the birch brittlegill.

<i>Russula brevipes</i> Species of fungus

Russula brevipes is a species of mushroom commonly known as the short-stemmed russula or the stubby brittlegill. It is widespread in North America, and was reported from Pakistan in 2006. The fungus grows in a mycorrhizal association with trees from several genera, including fir, spruce, Douglas-fir, and hemlock. Fruit bodies are white and large, with convex to funnel-shaped caps measuring 7–30 cm (3–12 in) wide set atop a thick stipe up to 8 cm (3 in) long. The gills on the cap underside are closely spaced and sometimes have a faint bluish tint. Spores are roughly spherical, and have a network-like surface dotted with warts.

<i>Russula aeruginea</i> Species of fungus

Russula aeruginea, also known as the grass-green russula, the tacky green russula, or the green russula, is an edible Russula mushroom. Widely distributed in northern temperate regions, it is usually found under birch, mostly in pine forests. The very poisonous death cap can have a similar appearance, especially from above.

<i>Russula caerulea</i> Species of mushroom-forming fungus

Russula caerulea, commonly known as the humpback brittlegill, is a member of the genus Russula, whose members are also known as brittlegills. It is a dark vinaceous or purple-colored edible mushroom, and grows with coniferous trees in late summer and autumn. It is found in Europe and North America.

<i>Russula atropurpurea</i> Species of fungus

Russula atropurpurea is an edible member of the genus Russula. It is dark vinaceous or purple, and grows with deciduous, or occasionally coniferous trees. It is commonly called the blackish purple Russula, or the purple brittlegill.

<i>Russula delica</i> Species of fungus

Russula delica is a mushroom that goes by the common name of milk-white brittlegill, and is a member of the genus Russula, all of which are collectively known as brittlegills. It is mostly white, with ochraceous or brownish cap markings, and a short robust stem. It is edible, but poor in taste, and grows in coniferous, broadleaved, or mixed woods. It can be confused with other white Russula species and certain white Lactarius species.

<i>Russula fellea</i> Species of fungus

The mushroom Russula fellea goes by the common name of the geranium-scented russula, or bitter russula and is a member of the genus Russula, all of which are commonly known as brittlegills. It is straw or honey coloured and in Britain grows in beech woods during autumn. It is inedible.

<i>Russula fragilis</i> Species of fungus

Russula fragilis, commonly known as the fragile russula, or fragile brittlegill, is a species of mushroom of the genus Russula, whose members are commonly known as brittlegills. It is a small, fragile, long stemmed, and variably coloured brittlegill, found in mixed forests, and woods in Europe, Asia, and North America.

<i>Russula heterophylla</i> Species of fungus

The edible wild mushroom Russula heterophylla, that has lately been given the common name of the greasy green brittlegill is placed in the genus Russula, the members of which are mostly known as brittlegills. It is a variably colored mushroom, found in deciduous forests, and woods in Britain, Europe, and Scandinavia. Appearing with broad-leaved trees in summer to early autumn, it usually has a greenish coloration.

<i>Russula albidula</i> Species of fungus

Russula albidula is a species of mushroom in the genus Russula. The species, known in the vernacular as the boring white russula or the whitish brittlegill, is nondescript, with a small or medium dirty white fruit body, and a highly acrid taste. It is found in eastern North America.

<i>Russula rosea</i> Species of fungus

Russula rosea, known as the rosy russula, is a north temperate, commonly found mushroom of the large "brittlegill" genus Russula.

<i>Russula mustelina</i> Species of mushroom

Russula mustelina, commonly known as the russet brittlegill, is a basidiomycete mushroom of the genus Russula native to Europe and North America. Swedish mycologist Elias Magnus Fries described the species in his 1838 book Epicrisis Systematis Mycologici seu Synopsis Hymenomycetum.

<i>Russula vinosa</i> Species of fungus

Russula vinosa, commonly known in English as the darkening brittlegill, is a species of basidiomycete mushroom found in coniferous woodlands in Europe and North America in summer and early autumn. Unlike many red-capped members of the russula genus, it is edible and mild-tasting. It is usually understood to have a symbiotic relationship with evergreen tree roots, except for in mountainous areas where it has occasionally associated with birches.

References

  1. 1 2 3 Phillips R. (2006). Mushrooms. Pan MacMillan. p. 25. ISBN   0-330-44237-6.
  2. Bon M. (1987). The Mushrooms and Toadstools of Britain and North Western Europe. Hodder and Stoughton. ISBN   0-340-39935-X.