Agrocybe dura
A grassland agaric listed as edible in historical and scientific catalogues for Hong Kong and China. Taxonomic concepts and practical food value vary; the listings do not establish safe identification or culinary practice.
Heimioporus japonicus
Heimioporus japonicus is an ectomycorrhizal bolete recorded from China and East Asia. Its edibility is contested: one source records sale, another a toxic status and gastroenteritis.
A bolete with an unsettled identity
Heimioporus japonicus is a bolete, a fungus with a pored cap rather than gills, that forms ectomycorrhizal partnerships with trees. The catalogue gives it the common name Japanese reticulate bolete. Its species identity and its ecotype are both recorded as unresolved, so the name should be read as a working label.
The genus has more than one species that the sources treat as toxic, and the sources do not allow the reader to transfer a finding from one Heimioporus to another without checking the identity.
Sources for this section
Where it is recorded
The catalogue records the species in Yunnan, China, and East Asia, and notes that it is recorded for sale. A China CDC weekly listing that was seen only as a search snippet, and not read in full, appears to place H. japonicus among gastroenteritis-causing species in Fujian incidents. The Yunnan market incidents in that listing are attributed to a different Heimioporus species.
The sources do not give quantities, preparation or storage details, and none are recorded here.
Sources for this section
The safety conflict
The record carries a safety conflict. One source discussion treats the species as toxic and reports gastroenteritis; the market record shows it was still sold. The sources reviewed do not settle which account is right for this species.
This page does not give an edibility verdict. It is not a recommendation to collect, buy or eat this fungus. Anyone encountering it should not rely on this page for a food decision.
Sources for this section
Places
China
Documented use · Country evidenceThe catalogue lists Yunnan and East Asia; the China CDC listing ties the species to Fujian incidents. Neither establishes an edible use.
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Sources
Journal of Ethnobiology and Ethnomedicine / SpringerIdentity · Safety
Ethnomycological market study (catalogue source S032)Catalogue record: named milkcap sold in Pu'er markets; Heimioporus japonicus recorded for sale despite toxic status in one source discussion; article not retrievable in this run (publisher page redirects to sign-in)
Cited in: A bolete with an unsettled identity; Where it is recorded; The safety conflict