Kingdom: Fungi
The conservation status assigned to each entry should be taken as, to varying degrees, tentative. Cases where there is no suitable habitat left are rare, and they may still persist in captivity (knowingly or not). Thus an airtight case for extinction is very difficult to build. While most cases of rediscovery are due to a failure to have previously surveyed significant parts of known or suitable habitat. Or the organism was not, or at least should not, have been feared extinct in the first place. Decades without a record means absolutely nothing in and of itself. While the taxonomic validity or synonymy of a given taxon is somewhat subjective, and there is the very slight risk that a taxon will be (consciously or subconsciously) synonymised in order to reduce the number of extinctions.
Phylum: Ascomycota (Sac Fungi)
Class: Ascomycetes
Order: Pertusariales
Family: Megasporaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Aspicilia tuberculosa | (Ach.) J. R. Laundon | - | c.1830 | Great Britain | Missing | Access |
Class: Dothideomycetes
Order: Microthyriales
Family: Microthyriaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Asterinella hiugensis | Access |
Class: Eurotiomycetes
Order: Eurotiales
Family: Trichocomaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Penicillium paradoxum | (Fennell & Raper) | - | - | India | Rediscovered | Access |
Order: Onygenales
Family: Onygenaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Chrysosporium synchronum | Access |
Order: Pyrenulales
Family: Pyrenulaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Pyrenula micheneri | Access |
Order: Verrucariales
Family: Verrucariaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Catapyrenium heppioides | Access |
Class: Lecanoromycetes
Order: Acarosporales
Family: Acarosporaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Acarospora orcuttii | K. Knudsen, 2010 | - | 1884 | California, USA | "Missing" | Access |
Order: Caliciales
Family: Caliciaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Buellia asterella | Access |
Order: Lecanorales
Family: Parmeliaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Bryoria divergescens | ||||||
| Neuropogon lambii | Imshaug, 1954 | - | - | Washington, USA | Rediscovered | Access |
Order: Ostropales
Family: Graphidaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Thelotrema philippinum | Access |
Order: Peltigerales
Family: Pannariaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Erioderma asahinae | Access |
Order: Teloschistales
Family: Teloschistaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
Caloplaca allanii | Access | |||||
| Caloplaca haematites |
Family: Physciaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Phaeophyscia leana | Access |
Class: Leotiomycetes
Order: Erysiphales
Family: Erysiphaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Cystotheca tjibodensis | (Gäum.) Katumoto, 1973 | - | - | Java, Indonesia | Rediscovered | Access |
| Erysiphe takamatsui | Y. Nomura, 1997 | - | - | Japan | Rediscovered | Access |
Class: Sordariomycetes
Order: Hypocreales
Family: Hypocreaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Diplocladium gregarium | Bres., 1903 | Access |
Family: incertae sedis
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Escovopsis aspergilloides | Seifert et al. 1995 | - | - | Trinidad | Rediscovered | Access |
| Escovopsis weberi | Muchovej & Della Lucia, 1990 | - | - | Cuba | Rediscovered | Access |
Class: incertae sedis
Order: incertae sedis
Family: incertae sedis
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Diploöspora rosea | Grove, 1916 | - | - | Italy & Micronesia | Rediscovered | Access |
Phylum: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Agaricaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Agaricus hahashimensis | Ito & Imai, 1940 | - | 1936 or later | Mount Sekimon, Hahajima, Bonin Islands, Japan | Missing | Access |
| Coprinus boninensis | ||||||
| Lepiota boninensis | ||||||
| Lepiota locaniensis |
Family: Crepidotaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Crepidotus subpurpureus | Access |
Family: Entolomataceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Rhodophyllus brunneolus | Access |
Family: Hygrophoraceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Camarophyllus microbicolor | Access | |||||
Hygrocybe macrospora | ||||||
| Hygrocybe miniatostriata |
Family: Marasmiaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Campanella boninensis | Access | |||||
| Neonothopanus gardneri |
Family: Nidulariaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Cyathus badius | Kobayasi, 1937 | - | - | Ogasawara Islands, Japan | Rediscovered | Access |
| Cyathus boninensis |
Family: Pleurotaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Pleurotus cyatheae | ||||||
| Pleurotus placentodes | (Berk.) Sacc., 1887 | - | - | China & Indiaqqq | Rediscovered | Access |
Family: Pluteaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
Pluteus daidoi | Access | |||||
| Pluteus horridilamellus | ||||||
| Pluteus machidae | ||||||
| Pluteus okabei | ||||||
| Pluteus verruculosus |
Family: Psathyrellaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Psathyrella boninense | Access | |||||
| Psathyrella cystidiosa | ||||||
| Psathyrella rhodospora |
Family: Strophariaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Gymnopilus noviholocirrhus | Access |
Family: Tricholomataceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Clitocybe castaneofloccosa | Access | |||||
| Collybia matris | ||||||
| Leptoglossum boninense |
Order: Boletales
Family: Boletaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Boletus nitidus violascens | ||||||
| Gastroboletus imbellus | ||||||
| Octaviania macrospora | ||||||
| Strobilomyces polypyramis | Hook. f., in Berkeley, 1851 | - | - | Sikkim, India | Rediscovered | Access |
Family: Sclerogastraceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Sclerogaster luteocarneus | (Bresadola) Zeller & C.W. Dodge, 1935 | - | - | Brazil | Rediscovered | Access |
Order: Cantharellales
Family: Cantharellaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Cantharellus camphoratus | R.H. Petersen, 1979 | - | - | Canada | Rediscovered | Access |
Order: Hysterangiales
Family: Hysterangiaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Circulocolumella hahashimensis | Access |
Order: Polyporales
Family: Polyporaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Lentinus lamelliporus | Access |
Order: Russulales
Family: Albatrellaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Albatrellus cantharellus | (Lloyd) Pouzar, 1972 | - | 1914 or later | Miyagi Prefecture, Tōhoku region, Honshu, Japan | Missing | Access |
Family: Russulaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Lactarius ogasawarashimensis | ||||||
| Russula boninensis | ||||||
| Russula punctipes | Singer, 1935 | - | (rediscovered) | China | Rediscovered | Access |
Class: Dacrymycetes
Order: Dacrymycetales
Family: Dacrymycetaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Dacrymyces pezizoides | Kobayasi, 1939 | - | (rediscovered) | Japan | Rediscovered | Access |
Phylum: Chytridiomycota
Class: Chytridiomycetes
Order: Spizellomycetales
Family: Olpidiaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Nucleophaga amoebae | P. A. Dang, 1896 | - | - | ? | Rediscovered | Access |
Phylum: Entomophthoromycota
Class: Entomophthoromycetes
Order: Entomophthorales
Family: Entomophthoraceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Erynia aquatica | (J.F. Anderson & Anagnost.) Remaud. & Hennebert, 1980 | - | - | New York, USA | Rediscovered | Access |
Phylum: incertae sedis
Order: Mucorales
Family: Cunninghamellaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Cunninghamella homothallica | Access |