Formerly Russula mairei (Singer), and commonly known as the beechwood sickener, the now re-classified fungus Russula nobilis (Velen.)[1] is a basidiomycetemushroom of the genus Russula. This group of mushrooms are noted for their brittle gills and bright colours.
It was previously named in honour of French mycologist René Maire by Rolf Singer in 1929, but found to be the same taxon as the earlier 1920 Russula nobilis, which has naming priority.
Descriptionedit
The cap is a red or rosy colour, 3–6 cm wide, convex to flat, or slightly depressed, and weakly sticky. It peels only to a third of its radius, which reveals pink flesh.[1] The flesh is firm and white or sometimes yellowish, smells of coconut, and tastes peppery.[2] It is often damaged by slugs. The stem is 2–5 cm long, 1–1.5 cm wide, cylindrical, (firmer than its conifer dwelling namesake, Russula emetica), and white. The gills are narrowly spaced, adnexed, rounded, and white, often with a faint blue-green sheen. The spore print is white.
Russula nobilis is inedible, and probably poisonous in quantity, but not deadly. Many bitter tasting red-capped species can cause problems if eaten raw; the symptoms are mainly gastrointestinal in nature: diarrhoea, vomiting and colicky abdominal cramps. The active agent has not been identified but thought to be caused by chemical compounds known as sesquiterpenes, which have been isolated from the related genus Lactarius and from Russula sardonia.[4]
^Benjamin, Denis R. (1995). Mushrooms: poisons and panaceas — a handbook for naturalists, mycologists and physicians. New York: WH Freeman and Company. p. 369. ISBN0-7167-2600-9.
"Danske storsvampe. Basidiesvampe" [a key to Danish basidiomycetes] J.H. Petersen and J. Vesterholt eds. Gyldendal. Viborg, Denmark, 1990. ISBN87-01-09932-9
External linksedit
Media related to Russula nobilis at Wikimedia Commons
January 01, 1970
russula, nobilis, formerly, russula, mairei, singer, commonly, known, beechwood, sickener, classified, fungus, velen, basidiomycete, mushroom, genus, russula, this, group, mushrooms, noted, their, brittle, gills, bright, colours, scientific, classification, do. Formerly Russula mairei Singer and commonly known as the beechwood sickener the now re classified fungus Russula nobilis Velen 1 is a basidiomycete mushroom of the genus Russula This group of mushrooms are noted for their brittle gills and bright colours Russula nobilis Scientific classification Domain Eukaryota Kingdom Fungi Division Basidiomycota Class Agaricomycetes Order Russulales Family Russulaceae Genus Russula Species R nobilis Binomial name Russula nobilisVelen Synonyms Russula mairei Singer Russula nobilisMycological characteristicsGills on hymeniumCap is convexHymenium is freeStipe is bareSpore print is whiteEcology is mycorrhizalEdibility is inedible Contents 1 Taxonomy 2 Description 3 Distribution and habitat 4 Edibility 5 See also 6 References 7 External linksTaxonomy editIt was previously named in honour of French mycologist Rene Maire by Rolf Singer in 1929 but found to be the same taxon as the earlier 1920 Russula nobilis which has naming priority Description editThe cap is a red or rosy colour 3 6 cm wide convex to flat or slightly depressed and weakly sticky It peels only to a third of its radius which reveals pink flesh 1 The flesh is firm and white or sometimes yellowish smells of coconut and tastes peppery 2 It is often damaged by slugs The stem is 2 5 cm long 1 1 5 cm wide cylindrical firmer than its conifer dwelling namesake Russula emetica and white The gills are narrowly spaced adnexed rounded and white often with a faint blue green sheen The spore print is white Distribution and habitat editThe species is mycorrhizal with beech Fagus in woodland areas 3 It is widespread and common in Europe Asia and North America where these trees grow Edibility editRussula nobilis is inedible and probably poisonous in quantity but not deadly Many bitter tasting red capped species can cause problems if eaten raw the symptoms are mainly gastrointestinal in nature diarrhoea vomiting and colicky abdominal cramps The active agent has not been identified but thought to be caused by chemical compounds known as sesquiterpenes which have been isolated from the related genus Lactarius and from Russula sardonia 4 See also editList of Russula speciesReferences edit a b Roger Phillips 2006 Mushrooms Pan MacMillan p 19 ISBN 0 330 44237 6 Russula mairei 7 August 2008 Thomas Laessoe 1998 Mushrooms flexi bound Dorling Kindersley ISBN 0 7513 1070 0 Benjamin Denis R 1995 Mushrooms poisons and panaceas a handbook for naturalists mycologists and physicians New York WH Freeman and Company p 369 ISBN 0 7167 2600 9 Danske storsvampe Basidiesvampe a key to Danish basidiomycetes J H Petersen and J Vesterholt eds Gyldendal Viborg Denmark 1990 ISBN 87 01 09932 9External links edit nbsp Media related to Russula nobilis at Wikimedia Commons Retrieved from https en wikipedia org w index php title Russula nobilis amp oldid 1194837909, wikipedia, wiki, book, books, library,
