Amanita pantherina var. abietum and Other Named Forms

October 31, 2026 Viktor

Short answer: Amanita pantherina var. abietum is a conifer form of the panther cap. It was first named as a separate species, Amanita abietum, by E.-J. Gilbert in 1929, made a variety of the panther cap by Veselý in 1933 and treated as a form by Neville and Poumarat in 2004. French sources describe it as stockier, growing mainly under conifers and with a cap edge that stays smooth for a long time. Today the major global checklists, Species Fungorum and the GBIF Backbone, fold it into Amanita pantherina, while the French and German national lists still keep it. Several other named forms have been folded in the same way, and a few former varieties, such as var. multisquamosa and var. mediterranea, are now treated as separate species.

The panther cap is a variable mushroom. Its cap can be dark brown, beige or very pale, its white flakes can wash off in rain, and it grows under both broadleaved trees and conifers (Mycocharentes, Amanita pantherina, 2023). For more than a century, mycologists gave some of these variants their own names. This guide explains what those names mean, what var. abietum is, which other forms and varieties have been named, how today's checklists treat them and what that means for a product labelled Amanita pantherina.

What do variety and form mean in a mushroom name?

Below the species, fungus names can have two common ranks. A variety (var.) is used for a population that differs in a consistent way, often linked to habitat or region. A form (f.) is a lower rank, usually for a smaller difference such as colour or size. Both are written after the species name, so Amanita pantherina var. abietum means "the abietum variety of the panther cap".

The names in brackets and after them record who did what. In Amanita pantherina var. abietum (E.-J. Gilbert) Veselý, the name in brackets is the person who first described the taxon, and the name after it is the person who moved it to its current rank (GBIF Backbone Taxonomy, Amanita pantherina var. abietum). When a checklist calls a name a synonym, it means the checklist does not recognise it as separate and files it under another accepted name.

What is Amanita pantherina var. abietum?

The name comes from the Latin for fir, abies. E.-J. Gilbert first described it in 1929 as a species, Amanita abietum. Veselý made it a variety of the panther cap in 1933, in the journal Annales Mycologici (GBIF Backbone Taxonomy, Amanita pantherina var. abietum), and in 2004 Neville and Poumarat treated it as a form, Amanita pantherina f. abietum (TAXREF via GBIF, Amanita pantherina var. abietum).

A 2023 identification sheet from Mycocharentes, a French regional mycological group, says this form would be distinguished by a robust size, a mainly conifer habitat and a cap edge that is not grooved, unlike the typical panther cap, whose edge becomes lined when mature. The same sheet shows a collection that matched the form but was found under broadleaved trees (Mycocharentes, Amanita pantherina, 2023).

A 1984 note by Guy Fourré in the bulletin of a French botanical society adds more detail. Two Italian illustrations of var. abietum showed a dark brown cap decorated with greyish patches and a stocky shape, which matched the author's own collections from western France in 1982. Older descriptions said the cap edge was not or barely grooved, but the Italian authors and Gilbert said it could become lined at full maturity. The note also called abietum a mountain taxon and an uncommon one in western France, and recorded a deeply buried stem base that earlier descriptions did not mention (Fourré, Bulletin de la Société Botanique du Centre-Ouest, 1984).

So the descriptions agree on a stocky, often darker panther cap that tends to grow with conifers, but they disagree on details, and the 1984 author admitted that so few collections existed that it was hard to tell which features were constant (Fourré, Bulletin de la Société Botanique du Centre-Ouest, 1984).

Is var. abietum still recognised?

It depends on which list you check. Species Fungorum, the global nomenclature database for fungi, treats Amanita pantherina f. abietum as a synonym of Amanita pantherina (Species Fungorum via GBIF, f. abietum), and the GBIF Backbone Taxonomy does the same for var. abietum (GBIF Backbone Taxonomy, Amanita pantherina var. abietum).

National lists are less settled. TAXREF, the French national species list, accepts f. abietum as a form of the panther cap (TAXREF via GBIF, Amanita pantherina var. abietum). The German fungus list compiled by the German Mycological Society (DGfM) accepts it as a variety, spelled abietinum (DGfM German fungus list via GBIF, var. abietinum). The list of fungi recorded in Japan up to 2010 also includes f. abietum (List of fungi recorded in Japan via GBIF, f. abietum).

We searched PubMed, the US National Library of Medicine's database, for DNA studies of var. abietum and found none. DNA work on the panther cap so far has compared continents rather than forms. A 2004 Kyoto study split mushrooms called Amanita pantherina into Eurasian and North American groups (Oda et al., Mycol Res, 2004), and a 2026 study of whole mitochondrial genomes found that these genomes can reveal hidden lineages within established species complexes (Quintero-Corrales and Garibay-Orijel, Microb Genom, 2026). Whether abietum is one of those hidden lineages, a habitat form or simply part of normal variation has not been tested.

Which other panther cap forms have been named?

Several other variants of the European panther cap have received names. Most are now treated as part of the species.

f. robusta A. Pearson. A robust form named in 1946 in the Transactions of the British Mycological Society. The GBIF Backbone treats it as a synonym of Amanita pantherina (GBIF Backbone Taxonomy, f. robusta).
f. albida R. Schulz. A pale form named in 1924; albida means whitish. TAXREF still accepts it as a form (TAXREF via GBIF, f. albida), while Species Fungorum treats it as a synonym (Species Fungorum via GBIF, f. albida).
Forms named by Neville and Poumarat. Besides treating abietum as a form, these authors named other variants, including var. isabellomarginata and f. stramineovelata, which are now listed as synonyms of Amanita pantherina (DGfM German fungus list via GBIF, var. isabellomarginata) (Species Fungorum via GBIF, f. stramineovelata).
Yellow forms. The 1984 French note recorded yellowish panther caps that were frequent on sandy alluvial soils in the Forez plain and were sometimes mislabelled as Amanita gemmata at local exhibitions (Fourré, Bulletin de la Société Botanique du Centre-Ouest, 1984). They were described without a formal name.

Which former varieties are now separate species?

Some names that started as panther cap varieties are now treated as species in their own right.

var. multisquamosa. Made a variety of the panther cap in 1977 and now treated as Amanita multisquamosa (GBIF Backbone Taxonomy, var. multisquamosa), a pale species of eastern North America (MushroomExpert, Amanita multisquamosa).
var. velatipes. Now listed as Amanita velatipes, a name first published by G.F. Atkinson (Species Fungorum via GBIF, var. velatipes).
var. pantherinoides. Now listed as Amanita pantherinoides (Species Fungorum via GBIF, var. pantherinoides), a name described from the Pacific Northwest (MushroomExpert, Amanita pantherina).
var. mediterranea. Named by Malençon and Bertault and now listed as a separate species, Amanita gioiosa (Species Fungorum via GBIF, var. mediterranea).
var. dunensis. A dune variety named by Bon, now listed by the Catalogue of Life as Amanita dunensis (Catalogue of Life via GBIF, var. dunensis).

Our panther cap history article explains why the North American mushrooms long sold under the European name are probably not the European species.

How are the named forms treated today?

The table summarises the checklists cited above. Treatments can change as new DNA work is published.

Name	Named	What it described	Treatment today
var. abietum	1929 (as species), 1933 (as variety)	Stocky conifer form	Synonym globally; kept in French and German lists
f. robusta	1946	Robust form	Synonym
f. albida	1924	Pale form	Synonym globally; form in TAXREF
var. multisquamosa	1977 (as variety)	Pale eastern North American mushroom	Separate species
var. mediterranea	Malençon and Bertault	Mediterranean mushroom	Separate species, Amanita gioiosa
var. dunensis	Bon	Dune mushroom	Separate species in the Catalogue of Life

The pattern runs in two directions. Names for colour and size variants of the European panther cap have mostly been folded back into the species, while names for regional mushrooms outside central Europe have mostly been raised to species.

Why do so many named forms exist?

The panther cap changes with age, weather and habitat. The Mycocharentes sheet notes that the cap ranges from dark brown to beige and is sometimes very pale, that the white flakes can disappear quickly in rain and that the cap edge becomes grooved only when mature (Mycocharentes, Amanita pantherina, 2023). Before DNA tools, mycologists had only these visible features, so distinctive collections often received their own names.

Today, DNA is the main test of whether a variant is a separate lineage. A 2020 review by an international group of mycologists set out how DNA barcodes are now used to identify fungi and where they reach their limits (Lücking et al., IMA Fungus, 2020). Until a variant such as abietum is sequenced and compared, its name records a description rather than a proven lineage.

What does this mean for a product label?

Form and variety names are not used on product labels, and for good reason. The checklists disagree on whether forms such as abietum exist, and the features that define them, such as overall shape and the cap edge, cannot be checked in dried material. Our Amanita pantherina products are wild-foraged in the Carpathian Mountains of Ukraine, inside the European range of the species, and we label them by species and origin.

For anyone collecting or photographing panther caps, form names are a reminder that one species can look quite different from one collection to the next. Our guide to Amanita identification myths explains why one name so often covers more than one look, and our identification guide lists who can check an identification for you.

Frequently Asked Questions

What does abietum mean?

It comes from the Latin for fir, abies, and refers to the form's association with conifers.

Is var. abietum a separate species?

It was first described as one, Amanita abietum, in 1929, but today it is treated as a variety, a form or simply a synonym of the panther cap, depending on the checklist. We found no DNA study that has tested it.

How is var. abietum told apart from the typical panther cap?

French sources describe it as stockier, often darker, mainly under conifers and with a cap edge that stays smooth for longer, but they note that these features may not be constant.

Are there yellow or white panther caps?

Yes. Pale forms were named f. albida in 1924, and yellowish panther caps have been recorded in France. Most checklists treat them as part of the species.

Is Amanita multisquamosa a variety of the panther cap?

It was once called Amanita pantherina var. multisquamosa, but it is now treated as a separate species of eastern North America.

Do you sell a specific form of Amanita pantherina?

No. We label our products by species and origin. They are wild-foraged in the Carpathian Mountains of Ukraine.

Sources

This article is for educational and identification-awareness purposes only. It is not a foraging guide. Never eat any wild mushroom on the basis of an article, app or photo; have the whole specimen checked by an experienced mycologist.

About the Author

Written and reviewed by Viktor at Amanita Store, based on GBIF, Species Fungorum, TAXREF and the DGfM fungus list, French mycological sources and the DNA studies cited in this article. We sell Amanita pantherina products from the Ukrainian Carpathians and wanted to explain the older names that still appear in field guides.

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