Fungi named in 1931

Rusts are fungal plant pathogens of the order Pucciniales (previously known as Uredinales) causing plant fungal diseases. An estimated 168 rust genera and approximately 7,000 species, more than half of which belong to the genus Puccinia, are currently accepted. Rust fungi are highly specialized plant pathogens with several unique features. Taken as a group, rust fungi are diverse and affect many kinds of plants. However, each species has a range of hosts and cannot be transmitted to non-host plants. In addition, most rust fungi cannot be grown easily in pure culture. Most species of rust

Ophiocordyceps unilateralis, commonly known as zombie-ant fungus, is an insect-pathogenic fungus, discovered by the British naturalist Alfred Russel Wallace in 1859. Zombie ants, infected by the Ophiocordyceps unilateralis fungus, are predominantly found in tropical rainforests. These fungi thrive in warm, humid environments, which are ideal for their growth and reproduction. However, they can also be found in warm-temperate forest systems. The fungus primarily targets ants from the tribe Camponotini, including carpenter ants (genus Camponotus). O. unilateralis infects ants of the tribe

Porphyrellus porphyrosporus, commonly known as the dusky bolete, is a rare fungus belonging to the family Boletaceae. With its purple-brown cap and stem, P. porphyrosporus is not easy to spot, despite its large size. It is a large (both cap diameter and stem length up to 15 cm) brown bolete. Found in Europe and North America in summer and autumn, the species occurs under trees.

Ophiocordyceps is a genus of fungi within the family Ophiocordycipitaceae. The widespread genus, first described scientifically by British mycologist Tom Petch in 1931, contains about 140 species that grow on insects. Anamorphic genera that correspond with Ophiocordyceps species are Hirsutella, Hymenostilbe, Isaria, Paraisaria, and Syngliocladium. One species complex, Ophiocordyceps unilateralis, is known for its parasitism on ants, in which it alters the behavior of the ants in such a way as to propagate itself more effectively, the parasite starts on the ground and comes in contact with an

The mushroom Russula gracillima, commonly known as the slender brittlegill, is a member of the genus Russula, whose members are commonly known as brittlegills. It is a small, pale, long stemmed brittlegill associated mainly with birch and is occasional in Europe, Asia, and North America.

Gibberella fujikuroi is a fungal plant pathogen. It causes bakanae disease in rice seedlings. Another name is foolish seedling disease. It gets that name because the seeds can be infected, leading to disparate outcomes for the plant. There are not many diseases that initiate similar symptoms as bakanae.

Tapinella panuoides, also known as oyster rollrim and as fan pax from its former binomial Paxillus panuoides, is a species of fungus in the genus Tapinella.

Russula versicolor, commonly known as the birch brittlegill, is a mushroom in the genus Russula. It is considered inedible.

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Phaeocollybia is a genus of fungi in the family Hymenogastraceae. They are characterized by producing fruit bodies (mushrooms) with umbonate caps and rough brown spores. The genus is widely distributed (especially in temperate regions). As of January 2026, the genus contained about 90 species. They are known for a long stipe which continues down into the ground, known as a rooting stipe or pseudorhiza formed as the fruitbody grows up from the subterranean colonized roots well below the organic soil layer. The genus is primarily mycorrhizal but may also be somewhat parasitic on forest trees.

Karnal bunt (also known as partial bunt) is a fungal disease of wheat, durum wheat, and triticale. The smut fungus Tilletia indica, a basidiomycete, invades the kernels and obtains nutrients from the endosperm, leaving behind waste products with a disagreeable odor that makes bunted kernels too unpalatable for use in flour or pasta. While Karnal bunt generally does not lead to devastating crop losses, it has the potential to dramatically decrease yield, and poses additional economic concerns through quarantines which limit the export of suspected infectious wheat products from certain areas,

Tapinella is a genus of three inedible fungi in the Tapinellaceae family. The genus was circumscribed by the French mycologist Jean-Edouard Gilbert in 1931.

Porphyrellus is a genus of fungi of the family Boletaceae.

Mycoacia is a genus of toothed crust fungi in the family Meruliaceae. It was circumscribed by Dutch mycologist Marinus Anton Donk in 1931.

The Micropeltidaceae are a family of fungi with an uncertain taxonomic placement in the class Dothideomycetes.

Gloeocystidiellum is a single genus of fungi in the monotypic Gloeocystidiellaceae family. Its species form crust-like, smooth fruitbodies. It is probably polyphyletic and may be restricted to the group around the type species G. porosum.

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The Boliniaceae are a family of fungi in the Boliniales order. The family consisted of seven genera and 40 species in 2008. A new study found more genera and species in 2020.

Phaeocollybia christinae, commonly known as Christina's rootshank, is a species of fungus in the family Cortinariaceae. Found in the woodlands of Europe and eastern North America, it typically grows in sandy soil near conifer trees, especially spruce. The fruit bodies are characterized by a brownish cap with a pointed umbo, and a long stem that extends deeply into the soil.

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Mycena vinacea is a species of mushroom in the family Mycenaceae. Found in Australia, it was first described scientifically by John Burton Cleland in 1931.

The Graphiolaceae are a family of fungi in the Basidiomycota, Exobasidiales order. Species in the family have a widespread distribution, especially in warm temperate and tropical areas. Members of the Graphiolaceae are plant pathogens that grow biotrophically on the leaves of plants in the Palmae family.

Pronectria is a genus of fungi in the family Bionectriaceae. It consists of 44 species, all of which are lichenicolous. The genus was circumscribed by American plant ecologist Frederic Clements in 1931.

Pleurosticta is a small genus of foliose lichens belonging to the family Parmeliaceae. It has two species.

Gloeocystidiellum porosum is a fungal plant pathogen. It is a corticioid homobasidiomycete that grows on various types of dead wood.

Chloroscypha is a genus of fungi in the family Helotiaceae. The genus contains 14 species.

Botryobasidium is a genus of corticioid fungi belonging to the order Cantharellales. Basidiocarps (fruit bodies) are ephemeral and typically form thin, web-like, white to cream, effused patches on the underside of fallen branches, logs, and leaf litter. Several species form anamorphs producing chlamydospores. All species are wood- or litter-rotting saprotrophs and the genus has a worldwide distribution.

Alpova is a genus of fungi in the family Paxillaceae. It contains about 20 species of ectomycorrhizal false-truffles that collectively have a widespread distribution, especially in northern temperate areas. The genus was circumscribed by Carroll William Dodge in 1931.

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