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
Oudemansiella platensis
Oudemansiella platensis is a wood-rotting mushroom of the Brazilian Atlantic Forest and Cerrado, recorded in one Brazilian food-use source. The evidence for human consumption is thin, and no edibility verdict follows from it.
Identity and name
Oudemansiella platensis is a mushroom in the genus Oudemansiella, a group of agarics that grow on wood. The species was first published as Oudemansiella platensis (Speg.) Speg. in 1881, and the Colombian catalogue lists the name as accepted, with no synonyms recorded.
Some Brazilian records have used the name Oudemansiella canarii for this species. The supplied catalogue flags that use as a misapplication, so records under that name need checking against the species before they are read as evidence for it.
Habitat and use in Brazil
The supplied catalogue places the species on wood in the Atlantic Forest and Cerrado of Brazil and records a Brazilian food-use entry. The catalogue gives no supply, cultivation or preparation for it, and it marks the cultivation context as unknown.
The Colombian record for the species gives a different picture: its only recorded use is animal food, and it places the species in tropical South America at Antioquia, Colombia. Read together, the two records show that the species has been noted in local contexts, but they do not document how it is prepared or eaten.
Safety and identification
The catalogue states that documented occurrence and consumption do not establish a standardised food-safety assessment. This page does not treat the Brazilian record as evidence that the mushroom is safe to eat, and it gives no preparation that would make it safe.
Identification of this species for any food purpose should rest on a regional expert and a voucher specimen, not on a photograph or a single catalogue entry. The catalogue gives no toxicity information, so the absence of warnings in it is not a safety finding.
Places
Brazil
Documented use · Country evidenceCountry-level Brazilian food-use record from the supplied catalogue. The catalogue does not give a locality or a preparation.
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
Springer (via supplied fungi catalogue)Food use · Distribution
Supplied catalogue source for Oudemansiella platensis and Pleurotus albidus (Brazilian fungi), Springer, 2024Brazilian food-use record for Oudemansiella platensis, with the Atlantic Forest and Cerrado as its ecology
Cited in: Identity and name; Habitat and use in Brazil; Safety and identification
Colombian fungi catalogue (colfungi.org)Taxonomy · History
Oudemansiella platensis (Speg.) Speg., general informationAccepted name Oudemansiella platensis (Speg.) Speg., first published 1881
The only recorded use is animal food; millipedes of the order Siphonophorida feed on the basidiome
No toxicity or safety warnings are given; odour and taste are described as not distinctive
Cited in: Identity and name; Habitat and use in Brazil