Lanmaoa Asiatica Mushroom Causes Lasting Hallucinations
Genetic analysis confirms the identity of the bolete species, though its specific hallucinogenic chemical remains unidentified.
Updated on Oct. 25, 2026 in Botany
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The mushroom species Lanmaoa asiatica, consumed in parts of China and the Philippines, causes Lilliputian hallucinations and delirium when eaten raw or undercooked. While researchers have confirmed its identity through DNA sequencing, the specific chemical compounds responsible for these effects remain unknown.
Why it matters
Identifying the causative agent in L. asiatica could clarify the mechanism behind long-lasting, non-psilocybin hallucinogenic effects. This research assists mycologists and toxicologists in understanding mushroom-induced delirium in regions where these fungi are commonly consumed.
DNA sequencing performed in 2024 confirmed that specimens from China and the Philippines are the same species, formally named in 2015. Unlike other known hallucinogenic fungi, this species contains neither psilocybin nor ibotenic acid.
The players
Dentinger Lab
A research group at the Natural History Museum of Utah focused on fungal evolution and genomics.
The details
Consuming L. asiatica—a reddish bolete mushroom—can trigger delirium and dizziness lasting one to three days, with symptoms appearing 12 to 24 hours after ingestion. While the exact chemical trigger is not yet identified, the Dentinger Lab at the Natural History Museum of Utah has performed genomic analyses to characterize the species. Local restaurants in Yunnan Province currently employ a 15-minute cooking timer as a mitigation strategy to reduce the risk of these effects.
Timeline
3rd century CE: Early reports of mushroom hallucinations appear in Daoist texts.
1930s: Missionaries document cases of mushroom madness in Papua New Guinea.
2015: Scientists formally classify the mushroom as Lanmaoa asiatica.
2024: DNA sequencing confirms that L. asiatica specimens across regions are the same species.
The Tech Race
This research contextualizes historical anecdotes of 'mushroom madness' within a modern genomic framework. It advances the taxonomic identification of toxic fungi that were previously poorly defined in botanical literature.
In regions like Yunnan Province, individuals consuming L. asiatica must adhere to strict cooking protocols to mitigate health risks. There is no known treatment for the hallucinations, which can persist for up to three days after ingestion.
The takeaway
Researchers are now working to isolate the chemical compounds responsible for these prolonged hallucinations. Those in regions where this mushroom is consumed should strictly follow local safety protocols, as the biological cause of these effects remains under active investigation.
Further reading
Explore the latest classification efforts in Botany.
Source note: This article includes information reported by Discover Wildlife.
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