References

Every line on the back of a card, and where it comes from.

The Fungorum and Convivium cards each carry a short history on the back. Those two sets are still being drawn and are not on sale yet; this page exists so the sources are public before a single claim is printed. Nothing on them is folklore repeated: every claim was checked against a published source before it was printed, and where the usual story turned out to be wrong, the card says what the evidence says instead. The sources are listed here by plate so you can read further.

FUNGORUM · VOL. I

PLATE I · Amanita muscaria · Fly agaric

First Nature, Amanita muscaria, https://www.first-nature.com/fungi/amanita-muscaria.php (description, mycorrhizal hosts, distribution, toxins, Christmas colour hedge)

Kulpa, E. 2022, The Customs of Siberian Koryaks. The Use of Fly Agaric in Kamchatka Folk Medicine, Roczniki Kulturoznawcze 13(3), https://ojs.tnkul.pl/index.php/rkult/article/view/17866 (Koryak shamanic use)

Woodland Trust, Fly Agaric, https://www.woodlandtrust.org.uk/trees-woods-and-wildlife/fungi-and-lichens/fly-agaric/ (bulbous base, hosts, poisonous)

PLATE II · Boletus edulis · Penny bun · porcini · cep

First Nature, Boletus edulis, https://www.first-nature.com/fungi/boletus-edulis.php (description, hosts, obligate mycorrhiza, dries well)

Woodland Trust, Penny Bun, https://www.woodlandtrust.org.uk/trees-woods-and-wildlife/fungi-and-lichens/penny-bun/ (porcini, cep, Devil's bolete warning)

Boa, E. 2004, Wild edible fungi: a global overview, FAO, https://www.fao.org/3/y5489e/y5489e.pdf (Borgotaro collected for centuries and exported; verify page number before print)

PLATE III · Cantharellus cibarius · Golden chanterelle

First Nature, Cantharellus cibarius, https://www.first-nature.com/fungi/cantharellus-cibarius.php (description, hosts, ectomycorrhizal, etymology, false chanterelle)

Miller, N. 2023, The Forest's Gold: The Appearance of Chanterelles in Swedish History, NiCHE, https://niche-canada.org/2023/09/21/the-forests-gold-the-appearance-of-chanterelles-in-swedish-history/ (Swedish tradition, right to roam)

First Nature, Omphalotus olearius, https://www.first-nature.com/fungi/omphalotus-olearius.php (jack o'lantern, seriously poisonous)

PLATE IV · Morchella esculenta · Morel

First Nature, Morchella esculenta, https://www.first-nature.com/fungi/morchella-esculenta.php (hollow, season, chalky soil, dual ecology, cook thoroughly, Gyromitra warning)

Miller, A.N. et al. 2017, First report of the post-fire morel Morchella exuberans in eastern North America, Mycologia (burn morels are black morels of the Elata clade; M. esculenta not among them)

Kuo, M. et al. 2012, Taxonomic revision of true morels (Morchella) in Canada and the United States, Mycologia (North American yellow morel is a separate species)

Woodland Trust, Morel, https://www.woodlandtrust.org.uk/trees-woods-and-wildlife/fungi-and-lichens/morel/ (raw morels poisonous, false morel)

PLATE V · Tuber melanosporum · Black truffle

First Nature, Tuber melanosporum, https://www.first-nature.com/fungi/tuber-melanosporum.php (description, hosts, range, pigs then dogs, inoculated hazel)

Barou, V. et al. 2023, Aromatic Plants and Their Associated Arbuscular Mycorrhizal Fungi Outcompete Tuber melanosporum in Compatibility Assays with Truffle-Oaks, Biology 12(4):628, https://pmc.ncbi.nlm.nih.gov/articles/PMC10136101/ (orchards of inoculated seedlings, five-year lead time)

PLATE VI · Agaricus campestris · Field mushroom

First Nature, Agaricus campestris, https://www.first-nature.com/fungi/agaricus-campestris.php (description, saprobic, very closely related to A. bisporus, rings not the norm)

Scottish Fungi, Agaricus bisporus, https://sites.google.com/site/scottishfungi/species-profiles/agaricus-bisporus (first cultivation in France 1650)

MushroomExpert, Agaricus campestris, http://www.mushroomexpert.com/agaricus_campestris.html (arcs and fairy rings, saprobic)

First Nature, Amanita virosa, https://www.first-nature.com/fungi/amanita-virosa.php (destroying angel collected by accident with Agaricus)

PLATE VII · Marasmius oreades · Fairy ring champignon

RHS, Fairy rings in lawns, https://www.rhs.org.uk/biodiversity/fairy-rings (Marasmius oreades, 30 cm a year, hundreds of years)

First Nature, Marasmius oreades, https://www.first-nature.com/fungi/marasmius-oreades.php (description, saprobic, Clitocybe warning)

Woodland Trust, What is a fairy ring?, https://www.woodlandtrust.org.uk/blog/2019/08/what-is-a-fairy-ring/ (fairies dancing folklore)

First Nature, Clitocybe rivulosa, https://www.first-nature.com/fungi/clitocybe-rivulosa.php (fool's funnel, deadly poisonous)

PLATE VIII · Coprinus comatus · Shaggy inkcap

First Nature, Coprinus comatus, https://www.first-nature.com/fungi/coprinus-comatus.php (deliquescence, saprobic habitat, eat within an hour or two)

Scottish Fungi, Coprinus comatus, https://sites.google.com/site/scottishfungi/species-profiles/coprinus-comatus-shaggy-ink-cap (ink used for writing)

The Wildlife Trusts, Shaggy inkcap, https://www.wildlifetrusts.org/wildlife-explorer/fungi/shaggy-inkcap (habitat, edible when young)

PLATE IX · Lycoperdon perlatum · Common puffball

First Nature, Lycoperdon perlatum, https://www.first-nature.com/fungi/lycoperdon-perlatum.php (description, spore puff, etymology, saprotroph, deathcap-button warning)

Volk, T. 2001, Fungus of the Month, Lycoperdon pyriforme, University of Wisconsin, https://botit.botany.wisc.edu/toms_fungi/nov2001.html (Greek etymology, rain-triggered dispersal, slice every puffball)

PLATE X · Geastrum triplex · Collared earthstar

Woodland Trust, Collared Earthstar, https://www.woodlandtrust.org.uk/trees-woods-and-wildlife/fungi-and-lichens/collared-earthstar/ (beech leaf litter on chalk, 4-8 rays, raindrop dispersal, not eaten)

MushroomExpert, Geastrum triplex, https://www.mushroomexpert.com/geastrum_triplex.html (saprobic, rays non-hygroscopic)

First Nature, Astraeus hygrometricus, https://www.first-nature.com/fungi/astraeus-hygrometricus.php (the barometer earthstar is the species whose rays open and close)

PLATE XI · Fomes fomentarius · Tinder fungus · hoof fungus

Peintner, U., Pöder, R. and Pümpel, T. 1998, The Iceman's fungi, Mycological Research 102(10), https://www.cambridge.org/core/journals/mycological-research/article/abs/icemans-fungi/95A3560AB1CA97921C51349A758B4C35 (tinder from Fomes fomentarius in the girdle bag)

South Tyrol Museum of Archaeology, Ötzi's clothing, https://www.iceman.it/en/oetzi/clothing (belt pouch contained tinder fungus)

First Nature, Fomes fomentarius, https://www.first-nature.com/fungi/fomes-fomentarius.php (description, hosts, parasite then saprobe, amadou, inedible)

PLATE XII · Ganoderma lingzhi · Reishi · lingzhi (syn. G. sichuanense)

First Nature, Ganoderma lucidum, https://www.first-nature.com/fungi/ganoderma-lucidum.php (description, parasitic and saprobic, 2000 years of medicinal use)

Du, Z. et al. 2023, Re-Examination of the Holotype of Ganoderma sichuanense and a Clarification of the Identity of Chinese Cultivated Lingzhi, Journal of Fungi, https://pmc.ncbi.nlm.nih.gov/articles/PMC10051598/ (lingzhi is not European G. lucidum; G. lingzhi a later synonym of G. sichuanense)

GBIF, Ganoderma lingzhi, https://api.gbif.org/v1/species/7690471 (synonym of G. sichuanense)

The Metropolitan Museum of Art, Ruyi Scepter in the Shape of a Fungus of Longevity, https://www.metmuseum.org/art/collection/search/61919 (carved lingzhi as longevity symbol)

PLATE XIII · Lentinula edodes · Shiitake

Pegler, D.N. (Royal Botanic Gardens, Kew) 2003, Useful fungi of the world: the Shii-take, Shimeji, Enoki-take, and Nameko mushrooms, Mycologist 17(1), https://davidmoore.org.uk/21st_Century_Guidebook_to_Fungi_PLATINUM/REPRINT_collection/Pegler_oriental_edible_mushrooms.pdf (Song-dynasty origin c. 1000-1100 CE, dead-wood habit, spread to Japan)

Cornell Small Farms, Shiitake Mushroom Basics, https://smallfarms.cornell.edu/projects/mushrooms/methods-of-commercial-mushroom-cultivation-in-the-northeastern-united-states/1-shiitake-mushroom-basics (cap and gill colours, oak substrate)

Sustainable Cultivation and Functional Bioactive Compounds of Auricularia Mushrooms, PMC review, https://pmc.ncbi.nlm.nih.gov/articles/PMC12649933/ (wood ear cultivation 1,400 years old)

PLATE XIV · Laetiporus sulphureus · Chicken of the woods

Kew Grow Wild, Chicken of the woods, https://growwild.kew.org/plants/chicken-woods (hosts, brown rot of heartwood, soft flesh, edibility caveat, yew warning)

MushroomExpert, Laetiporus sulphureus, https://www.mushroomexpert.com/laetiporus_sulphureus.html (parasitic and saprobic, brown cubical heart rot)

First Nature, Laetiporus sulphureus, https://www.first-nature.com/fungi/laetiporus-sulphureus.php (chicken-like taste, refruiting the following year)

PLATE XV · Hericium erinaceus · Lion's mane · bearded tooth

First Nature, Hericium erinaceus, Bearded Tooth, https://www.first-nature.com/fungi/hericium-erinaceus.php (appearance, hosts, edibility, Schedule 8 protection in Britain)

MushroomExpert, Hericium erinaceus, https://www.mushroomexpert.com/hericium_erinaceus.html (saprobic and parasitic, unbranched clump from wounds of living hardwoods)

Hericium erinaceus Ethanolic Extract, Zebrafish Model, PMC, https://pmc.ncbi.nlm.nih.gov/articles/PMC8231562/ (centuries of use in traditional Chinese medicine)

PLATE XVI · Pleurotus ostreatus · Oyster mushroom

Comprehensive review on oyster mushroom species (Agaricomycetes), Heliyon, PMC, https://pmc.ncbi.nlm.nih.gov/articles/PMC10907667/ (Falck, Germany, 1917, stumps and logs; cultivation on agricultural waste)

First Nature, Pleurotus ostreatus, https://www.first-nature.com/fungi/pleurotus-ostreatus.php (appearance, beech hosts, saprobic role)

Woodland Trust, Oyster mushroom, https://www.woodlandtrust.org.uk/trees-woods-and-wildlife/fungi-and-lichens/oyster-mushroom/ (fan shape, off-centre stem)

PLATE XVII · Amanita caesarea · Caesar's mushroom

First Nature, Amanita caesarea, Caesar's Mushroom, https://www.first-nature.com/fungi/amanita-caesarea.php (appearance, oak ectomycorrhiza, southern Europe, Agrippina and Claudius story, edibility)

Grimm-Samuel, V., On the Mushroom that Deified the Emperor Claudius, Classical Quarterly, https://www.cambridge.org/core/journals/classical-quarterly/article/abs/on-the-mushroom-that-deified-the-emperor-claudius/98E89EF6B7A5E62E59180071664BA4E9 (death cap as the likely agent; evidence contradictory, hence legend framing)

PLATE XVIII · Amanita phalloides · Death cap

First Nature, Amanita phalloides, Deathcap, https://www.first-nature.com/fungi/amanita-phalloides.php (appearance, oak mycorrhiza, over 90% of European fungus deaths, toxin survives cooking, volva check)

StatPearls, Amatoxin Mushroom Toxicity, NCBI Bookshelf, https://www.ncbi.nlm.nih.gov/books/NBK431052/ (95% of mushroom deaths worldwide from amatoxin-containing mushrooms)

PLATE XIX · Macrolepiota procera · Parasol

First Nature, Macrolepiota procera, Parasol, https://www.first-nature.com/fungi/macrolepiota-procera.php (cap 10-25 cm, height to 30 cm, snakeskin stem, habitat, saprobic, Lepiota caution)

MushroomExpert, Macrolepiota procera, https://www.mushroomexpert.com/macrolepiota_procera.html (freely sliding double-edged ring)

PLATE XX · Craterellus cornucopioides · Horn of plenty

MushroomExpert, Craterellus cornucopioides, https://www.mushroomexpert.com/craterellus_cornucopioides.html (mycorrhizal with hardwoods, French name, black trumpet form)

First Nature, Craterellus cornucopioides, Horn of Plenty, https://www.first-nature.com/fungi/craterellus-cornucopioides.php (beech and oak, hollow trumpet, cornucopia etymology, edibility and drying)

PLATE XXI · Sparassis crispa · Cauliflower fungus

Scottish Fungi, Sparassis crispa (Cauliflower Mushroom), https://sites.google.com/site/scottishfungi/species-profiles/sparassis-crispa-cauliflower-mushroom (roots of pine, weak parasite, brown rot, recurs yearly, sizes, edibility)

First Nature, Sparassis crispa, Wood Cauliflower, https://www.first-nature.com/fungi/sparassis-crispa.php (lobes, up to 40 cm and several kg, pine base, eat only when young and pale)

Kenyon College microbewiki, Sparassis crispa, https://microbewiki.kenyon.edu/index.php/Sparassis_crispa (brown rot fungus on conifer roots)

PLATE XXII · Hydnum repandum · Hedgehog mushroom

First Nature, Hydnum repandum, Wood Hedgehog, https://www.first-nature.com/fungi/hydnum-repandum.php (cap, spine length, damp woodland, ectomycorrhizal, rings, edibility)

MushroomExpert, Hydnum repandum, https://www.mushroomexpert.com/hydnum_repandum.html (mycorrhizal with hardwoods or conifers)

PLATE XXIII · Ramaria botrytis · Pink-tipped coral · rosso coral

First Nature, Ramaria botrytis, Rosso Coral, https://www.first-nature.com/fungi/ramaria-botrytis.php (colours, beech, ectomycorrhizal, botrytis etymology, Near Threatened, collecting discouraged)

MushroomExpert, Ramaria botrytis, https://www.mushroomexpert.com/ramaria_botrytis.html (mycorrhizal, cauliflower-like young form, pink tips)

PLATE XXIV · Armillaria ostoyae · Honey fungus

Guinness World Records, Heaviest organism, https://www.guinnessworldrecords.com/world-records/106978-heaviest-organism (Armillaria ostoyae, Malheur National Forest, 965 ha, at least 2,400 years old)

First Nature, Armillaria ostoyae, Dark Honey Fungus, https://www.first-nature.com/fungi/armillaria-ostoyae.php (cap, ring, parasitic and saprobic roles)

EarthDate, Bureau of Economic Geology, UT Austin, The Humongous Fungus Among Us, https://www.earthdate.org/episodes/the-humongous-fungus-among-us (rhizomorphs into roots and bark, area over 10 square km)

CONVIVIUM · VOL. II

PLATE I · Betula pendula · Amanita muscaria · Silver birch and fly agaric

First Nature, Amanita muscaria, https://www.first-nature.com/fungi/amanita-muscaria.php (ectomycorrhizal; birch, pine, spruce; poisonous)

Woodland Trust, Fly agaric, https://www.woodlandtrust.org.uk/trees-woods-and-wildlife/fungi-and-lichens/fly-agaric/ (mycorrhizal with birch)

PLATE II · Betula · Fomitopsis betulina · Birch and birch polypore

South Tyrol Museum of Archaeology, Ötzi's equipment, https://www.iceman.it/en/oetzi/equipment (two pieces on hide strips; assumed therapeutic use)

First Nature, Fomitopsis betulina, https://www.first-nature.com/fungi/piptoporus-betulinus.php (birch host; parasite then saprobe)

Wierer et al. 2018, PLoS One, https://pmc.ncbi.nlm.nih.gov/articles/PMC6010222/ (Fomes fomentarius with pyrite traces in the belt pouch)

PLATE III · Quercus robur · Boletus edulis · Oak and penny bun

First Nature, Boletus edulis, https://www.first-nature.com/fungi/boletus-edulis.php (ectomycorrhizal; beech, birch, oak, pine, spruce)

Woodland Trust, Penny bun, https://www.woodlandtrust.org.uk/trees-woods-and-wildlife/fungi-and-lichens/penny-bun/ (oak, beech, birch, conifers; wood edges)

PLATE IV · Quercus · Laetiporus sulphureus · Oak and chicken of the woods

Woodland Trust, Chicken of the woods, https://www.woodlandtrust.org.uk/trees-woods-and-wildlife/fungi-and-lichens/chicken-of-the-woods/ (mainly oak; brown rot; hollows heartwood)

First Nature, Laetiporus sulphureus, https://www.first-nature.com/fungi/laetiporus-sulphureus.php (saprobic on dead or dying hardwood; oak, chestnut, beech)

PLATE V · Picea abies · Cantharellus cibarius · Spruce and chanterelle

Kumar et al. 2024, Nutritional, nutraceutical and medicinal potential of Cantharellus cibarius, Food Science and Nutrition, https://pmc.ncbi.nlm.nih.gov/articles/PMC11717058/ (ectomycorrhizal; pine, spruce, hornbeam, oak; green-moss forest types)

First Nature, Cantharellus cibarius, https://www.first-nature.com/fungi/cantharellus-cibarius.php (ectomycorrhizal; also under conifers)

PLATE VI · Pinus sylvestris · Suillus luteus · Pine and slippery jack

MushroomExpert, Suillus luteus, https://www.mushroomexpert.com/suillus_luteus.html (mycorrhizal with pines incl. Scots pine; slimy cap; yellow pores)

First Nature, Suillus luteus, https://www.first-nature.com/fungi/suillus-luteus.php (always in or beside pine woods; white ring)

PLATE VII · Fagus sylvatica · Fomes fomentarius · Beech and tinder fungus

First Nature, Fomes fomentarius, https://www.first-nature.com/fungi/fomes-fomentarius.php (birch north, beech south; parasite then saprobe; annual layers; tinder)

Trees for Life, Tinder fungus, https://treesforlife.org.uk/into-the-forest/trees-plants-animals/others/tinder-fungus/ (heart rot parasite then saprotroph; widespread on beech in Europe)

South Tyrol Museum of Archaeology, Clothing, https://www.iceman.it/en/oetzi/clothing (belt pouch contained tinder fungus)

PLATE VIII · Quercus ilex · Tuber melanosporum · Holm oak and black truffle

Gómez-Molina, Sánchez, Puig-Pey, Garcia-Barreda 2023, Sequential application of inoculation methods improves mycorrhization of Quercus ilex seedlings by Tuber melanosporum, Fungal Biology, https://pubmed.ncbi.nlm.nih.gov/37993244/ (holm oak host; cultivation from mycorrhized seedlings)

First Nature, Tuber melanosporum, https://www.first-nature.com/fungi/tuber-melanosporum.php (mycorrhizal under oaks, hazel; pigs then dogs)

PLATE IX · Ulmus · Morchella · Elm and morel

MushroomExpert, Morchella esculentoides / americana, https://www.mushroomexpert.com/morchella_esculentoides.html (possibly saprobic and mycorrhizal; dead or dying American elms)

First Nature, Morchella esculenta, https://www.first-nature.com/fungi/morchella-esculenta.php (European habitat: chalky soil under deciduous trees)

PLATE X · Quercus · Lentinula edodes · Oak log and shiitake

Virginia Tech Extension, The Basics of Hardwood-Log Shiitake Mushroom Production and Marketing (ANR-102), https://www.pubs.ext.vt.edu/ANR/ANR-102/ANR-102.html (white oak best; drilling, spawn, wax; lean-to)

WSU Extension, A Hobbyist Guide to Growing Shiitake Mushrooms on Logs, https://pubs.extension.wsu.edu/product/a-hobbyist-guide-to-growing-shiitake-mushrooms-on-logs-for-woodland-owners/ (saprotrophic; oaks most common)

PLATE XI · Malus · Viscum album · Apple and mistletoe

RHS, Mistletoe, https://www.rhs.org.uk/advice/profile?pID=134&cID=728 (semi-parasitic; apple commonest UK host; thrushes spread seed; Christmas)

Pliny the Elder, Natural History XVI.95, ed. Bostock and Riley 1855, Perseus Digital Library, http://www.perseus.tufts.edu/hopper/text?doc=Perseus:text:1999.02.0137:book%3D16:chapter%3D95 (Druids, oak, golden sickle)

Woodland Trust, Mistletoe, https://www.woodlandtrust.org.uk/trees-woods-and-wildlife/plants/wild-flowers/mistletoe/ (mistle thrush; apple, lime, poplar)

PLATE XII · Populus · Pleurotus ostreatus · Poplar and oyster mushroom

First Nature, Pleurotus ostreatus, https://www.first-nature.com/fungi/pleurotus-ostreatus.php (saprobic; beech and oak; rarely conifers)

Li, Han, Liu, Zhao, Yang 2020, The saprotrophic Pleurotus ostreatus species complex, IMA Fungus, https://pmc.ncbi.nlm.nih.gov/articles/PMC7325090/ (saprotrophic decomposer; Populus; Salicaceae hosts)

The Wildlife Trusts, Oyster mushroom, https://www.wildlifetrusts.org/wildlife-explorer/fungi/oyster-mushroom (tiers on dead trees and stumps)