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Amanita robusta

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Amanita robusta Beeli is a poorly documented Central African Amanita known from voucher-backed rainforest collections in the Democratic Republic of the Congo and Cameroon. A Tshopo study reports local food use for a taxonomically supported voucher, but neither that record nor the name makes an unknown Amanita safe to identify or eat.

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Two whole orange-capped mushrooms and two longitudinal halves display white flesh, gills and stems with textured bulbous bases on a warm ivory background.

The Beeli species and its names

The working name is Amanita robusta Beeli, described from a 1928 collection at Binga in what is now the Democratic Republic of the Congo. A 2020 taxonomic study epitypified the name from a Cameroon collection and combined morphology, DNA sequences and phylogeny to clarify a species that had gone nearly a century without a new, well-documented collection. NCBI Taxonomy records the Beeli name and type material, while the specialist Amanitaceae.org account calls it accepted but emphasizes how limited the evidence remains.

The modern description reports a bright pink-orange cap with a violaceous ring around a paler disc, a large basal bulb, and a thick, membranous, warted volva. It is ectomycorrhizal and occurs in Guineo-Congolian rainforest, most often with Gilbertiodendron dewevrei; one Tshopo voucher was collected under Brachystegia laurentii. These details describe the studied taxon; they are not a checklist for identifying or eating a wild specimen.

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Rainforest places and an uneven season

The strongest modern records are from Binga and Tshopo in the DRC and the Dja Biosphere Reserve in Cameroon. In Cameroon, collections were made mainly in August and September, with a December collection also reported; an epitype was collected on 26 August 2014. The paper reports occurrence in rainy-season forest plots during September to November. In the DRC, the type was collected in May and the Tshopo voucher in October. These are site-specific observations rather than a single calendar for the species.

Some secondary lists include Malawi, but a primary voucher record was not verified here. The Madagascar entry requires separate treatment: FAO marked its edible status uncertain, and later research says the specimen called A. robusta by Bouriquet differs from Beeli’s taxon and may represent a different, reputedly toxic mushroom. Keep these records separate instead of combining them into one range or food-use claim.

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A narrow food-use record and strong caution

A 2020 ethnomycological study lists A. robusta Beeli as a food fungus and gives herbarium voucher ADK5236 from Tshopo. The same collection was reexamined in the later taxonomic study, which found its spore measurements consistent with A. robusta. The interview table gives the local name Balenda and reports use among participating communities. This supports a local, voucher-linked food-use record only; the reviewed sources do not document a preparation method, safe dose or species-specific toxicology.

Amanita includes species capable of severe or fatal poisoning, and this taxon’s similarity to other Amanitas has been discussed by taxonomists. The Madagascar misapplication further shows why old common-name and species-label records cannot be carried across specimens casually. This page is not a foraging or identification guide. No one should use it or a photograph to decide whether a wild mushroom is safe.

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Places

Tshopo

Documented use · Region evidence

Local interview and herbarium voucher support food use; preparation was not documented. This row does not assert uniform use across the DRC.

See Tshopoon the mapLocation source 1 → · Location source 2 →

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