Richard Paul Korf

Chlorociboria is the type genus of in the fungal family Chlorociboriaceae within order Helotiales. The genus includes 23 species. Two common temperate zone species, Chlorociboria aeruginascens and Chlorociboria aeruginosa, can only reliably be distinguished by microscopic examination. Chlorociboria aeruginosa has larger spores (9–15 μm × 1.5–2.5 μm) and the worm-like cells of the outer surface are rough, unlike the commoner C. aeruginascens, of which the spores are 6–10 μm × 1.5–2 μm. The hyphae and fruit bodies of all species make xylindein, a secondary metabolite that stains the substrate

The Leotiales are an order of ascomycete fungi. The order contains 2 families (the Bulgariaceae and the Leotiaceae), 11 genera, and 41 species.

The Vibrisseaceae are a family of fungi in the order Helotiales. The family was circumscribed by mycologist Richard P. Korf in 1990 to include the genera Vibrissea, Chlorovibrissea, and Leucovibrissea. According to the Dictionary of the Fungi (10th edition, 2008), the family encompasses 5 genera and 59 species.

Tarzetta catinus is a species of apothecial fungus belonging to the family Pyronemataceae. This is a largely European species with a few records from Mexico and the United States. It appears from spring to autumn as cream-coloured cups up to 5 cm across, usually in small groups among broad-leaved trees, especially beech. The rather similar Tarzetta cupularis is usually a smaller, deeper, flask-shaped cup, but the two species can only be reliably distinguished microscopically: by the shape of the spores (those of T. catinus being broader) and the paraphyses (those of T. catinus having

Pseudopezicula tracheiphila is a species of fungus in the family Helotiaceae that is found in Europe. It is a plant pathogen that affects grapes.

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The Cenangiaceae are a family of fungi in the order Helotiales.

Galiella rufa, commonly known as the rubber cup, the rufous rubber cup, or the hairy rubber cup, is a species of fungus in the family Sarcosomataceae. It produces cup-shaped fruit bodies with the texture of tough, gelatinous rubber, with a rough, blackish-brown, felt-like outer surface and a smooth reddish-brown inner surface. Found throughout eastern and Midwest North America as well as in Malaysia, the fruit bodies typically grow in clusters on branches and exposed portions of buried wood. Although generally considered inedible by North American mushroom field guides, the species is

Byssonectria fusispora is a species of apothecial fungus belonging to the family Pyronemataceae. This is a European species appearing as bright yellow-orange discs up to 3 mm in diameter thickly clustered on soil and rotting plant material, often at fire sites.

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Wilcoxina is a genus of fungi in the family Pyronemataceae. It was circumscribed by Chin Yang and Richard Korf in 1985. Some species have been shown to produce the siderophore compound ferricrocin. Species are cosmopolitan in distribution, and have been found growing with host plants in a wide variety on environments, such as nursery soils with high pH, mining sites with low pH and heavy metal contamination, natural forests and plantations, urban areas and peat soils. Wilcoxina species are mycorrhizal, and commonly infect a variety of conifers and deciduous trees such as Pinus, Betula, and

Trichophaeopsis is a genus of fungi in the family Pyronemataceae.

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Helvella fibrosa is a species of fungus in the family Helvellaceae of the order Pezizales. It was originally known as Octospora villosa when first scientifically described by the German botanist Karl Friedrich Wilhelm Wallroth in 1833, and was placed in a number of different genera throughout the decades, including Peziza, Fuckelina, and Cyathipodia. The current generic placement was proposed by Richard P. Korf in 2008.

Galiella is a genus of fungi in the family Sarcosomataceae. The genus is widely distributed in northern temperate regions, and according to one estimate, contains eight species.

Velutarina is a genus of fungi in the family Helotiaceae.

Plectania rhytidia is a species of fungus in the family Sarcosomataceae. Originally described under the name Peziza rhytidia by Miles Joseph Berkeley in 1855, the species was transferred to Plectania by mycologists John Axel Nannfeldt and Richard P. Korf in 1957.

Neolecta vitellina is a species of fungus belonging to the family Neolectaceae. It has cosmopolitan distribution.

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Iodophanus is a genus of fungi within the Pezizaceae family.

Geocoryne is a genus of fungi within the Leotiaceae family.

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The Medeolariales are an order of the class Leotiomycetes within the phylum Ascomycota. The order is monotypic, containing the single family Medeolariaceae, which in turn contains the single genus Medeolaria that contains the species Medeolaria farlowii, described by Thaxter in 1922.

Jafnea is a genus of fungi in the family Pyronemataceae. It was circumscribed by mycologist Richard P. Korf in 1960. The genus name of Jafnea is in honour of Johan Axel Frithiof Nannfeldt (1904–1985), who was a Swedish botanist and mycologist.

Dencoeliopsis is a genus of fungi in the family Helotiaceae. The genus contains 2 species.

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Coprotus is a genus of dung-inhabiting "cup fungi"; it has been assigned to the family Thelebolaceae, though doubt has subsequently been thrown on that placement.

Aleurina ferruginea is a fungus species in the family Pyronemataceae.

Zugazaea is a fungal genus in the order Helotiales. The relationship of this taxon to other taxa within the order is unknown (incertae sedis), and it has not yet been placed with certainty into any family. This is a monotypic genus, containing the single species Zugazaea agyrioides, which was found growing on decomposing wood in the Canary Islands. The fungus produces small, dull orange fruitbodies that seem to be embedded in a resinous or mulicaginous material. The type species is named for its resemblance to some members of the genus Agyrium. The genus was circumscribed by Richard Paul