Almond mushroom
The almond mushroom, Agaricus subrufescens, was cultivated in eastern North America in the 1800s, lost its market, and returned as a cultivated mushroom from Brazil, where it is grown under several names.
Mushrooms
Rick's oyster mushroom
Pleurotus rickii, Rick's oyster mushroom, is a rare wood-decaying oyster fungus of the southern Atlantic Forest and Yungas, listed as Near Threatened.
Overview
Pleurotus rickii is a saprotrophic oyster fungus that grows on dead trunks of flowering trees. It belongs to the Pleurotaceae, the family that also contains the common oyster mushroom.
Sources for this section
Naming
Rick first recorded the specimen in 1907 as Armillaria procera from Rio Grande do Sul in southern Brazil. Bresadola later revised it as a new species and named it for Rick, giving the name Pleurotus rickii Bres. (1920).
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Distribution and status
The IUCN assessment places the species in the southern Brazilian Atlantic Forest, the Argentine Yungas and the humid Chaco, with about ten records in total. A 2013 molecular study confirmed it among the Pleurotus species occurring in Brazil.
The species was assessed as Near Threatened under criterion C1 in 2020, with a decreasing population. The main threats are deforestation and land conversion, increasing fire, and climate change.
Food use record
The supplied catalogue lists a South American food-use record for this species from wood in southern Brazil. The catalogue states that documented occurrence and consumption do not establish a standardised food-safety assessment.
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Places
Southern Brazil
Documented use · Region evidenceCatalogue food-use record; Atlantic Forest records per IUCN.
Related
More from Brazil
Amazonian polypore
Polyporus indigenus, a polypore of the Brazilian Amazon. Its underground sclerotium, not the fruiting body, is the part people eat, and it is known locally as pão do índio.
Beef
Beef is the meat of domestic cattle, Bos taurus and Bos indicus, sold as steaks, roasts, ground meat and cured products, and used in broths, salami and koji seasonings.
Bloxam's entoloma
Bloxam's entoloma is a rare pink-gilled mushroom of old grasslands. Historical sources call it edible, but food-use evidence and older identifications remain uncertain; this does not recommend gathering or eating it.
Brazilian honeycomb polypore
Brazilian honeycomb polypore, Favolus brasiliensis, is a wood-growing fungus of tropical forests recorded as food in Brazil and Guyana. It has no standardized food-safety assessment.
Bresadolia paradoxa
Bresadolia paradoxa is a large fungus of dead hardwood logs in Amazon and Atlantic Forest sites in Brazil and Colombia. Its only edibility source is a conservation assessment, so the claim is lightly documented.
Brown and white sugar
White sugar is refined sucrose, almost pure; brown sugar is sucrose with molasses, left in or added back. Molasses makes brown sugar moister, darker and more strongly flavoured.
Cacao pulp
Cacao pulp is the moist, sweet-acid mucilage around cacao seeds. It fuels bean fermentation and can be extracted for fruit drinks, wine and vinegar.
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Sources
IUCN Red List of Threatened SpeciesTaxonomy · Conservation
Pleurotus rickii, IUCN Red List assessmentAuthority Bres. 1920 and the 1907 Armillaria procera record
Near Threatened, C1, assessed 2020
Ten records, threats
Cited in: Overview; Naming; Distribution and status
ScienceDirectTaxonomy
The genus Pleurotus in Brazil: a molecular and taxonomic overviewITS sequences confirm P. rickii among five Pleurotus species in Brazil
Cited in: Distribution and status
SpringerFood use
Pleurotus rickii, food-use record (catalogue source S034)South American food-use record, as summarised in the supplied catalogue; article not retrieved for this page
Cited in: Food use record