Fungi named in 2019

Inosperma erubescens (formerly Inocybe erubescens, also formerly named I. patouillardii), and also commonly known as the deadly fibrecap, brick-red tear mushroom or red-staining Inocybe, is a poisonous basidiomycete fungus, one of many in the original genus Inocybe and one of the few known to have caused death. It is found growing in small groups on leaf litter in association with beech. All mushroom guidebooks as well as mushroom hunters advise that the entire Inocybaceae should be avoided for consumption. The fruit bodies (i.e., the mushrooms) appear in spring and summer; the bell-shaped

Inocybe rimosa (formerly known as Inocybe fastigiata), commonly known as straw-colored fiber head, is a poisonous mushroom native to Europe. Its toxic ingredient is muscarine, discovered during the 1930s. Serious poisoning can result from consuming any quantity of the mushroom. German naturalist Jacob Christian Schäffer described this species in 1774. Lucien Quélet transferred it to the genus Inocybe in 1872. The tan (or rarely whitish) cap is cone-shaped then expands, generally retaining an umbo and a darker center. Its surface is fibrous. The gills are light grayish and brown with age. The

Dissingia leucomelaena, commonly known as the white-footed elf cup, is a species of fungus in the family Helvellaceae of the order Pezizales. As its common name implies, it is characterized by the white coloring of its stem.

Inosperma maculatum, formerly known as Inocybe maculata and commonly known as the frosty fibrecap or brown inocybe, is a species of mushroom in the family Inocybaceae. It was first described by Jean Louis Émile Boudier in 1885. It is a medium-sized brown mushroom with a fibrous, brown cap with white remnants of a universal veil in the middle. The stem is cream or brown. The species is ectomycorrhizal and grows at the base of various trees, including beech. Inosperma maculatum is found throughout Eurasia and North America. It is poisonous, containing muscarine. Possible symptoms include

Inosperma cookei, commonly known as the straw fibrecap, is a species of mushroom in the family Inocybaceae. It was first described in 1892 by Giacomo Bresadola, and is named in honour of Mordecai Cubitt Cooke. The species is found in Europe, Asia, and North America. It produces small mushrooms of an ochre colour, with a prominent umbo, fibres on the cap and a distinctive bulb at the base of the stem. It grows from soil in mixed woodland, and is encountered in summer and autumn, though is not common. Ecologically, it feeds through use of ectomycorrhiza. Inosperma cookei has been described as

Inosperma calamistratum, until 2019 known as Inocybe calamistrata, is a species of Inocybaceae fungus. The tannish cap is up to 5 centimetres (2 in) wide. The stem is up to 15 cm (6 in) long, possibly staining reddish above and/or blue-green below. The beige gills are fairly close and produce a brown spore print. The scent is typically pungent. Perhaps similar are Inocybe calospora, which does not stain, and I. tahquamenonensis, which is purplish. The species is found in Europe and North America (July–September to the east; August–November by the West Coast). Orson K. Miller Jr. and Hope

Inosperma bongardii is an agaric fungus in the family Inocybaceae. It was originally described as a species of Agaricus by German botanist Johann Anton Weinmann in 1836. Lucien Quélet transferred it to the genus Inocybe in 1872. A 2019 multigene phylogenetic study by Matheny and colleagues found that I. bongardii and its relatives in the subgenus Inosperma were only distantly related to the other members of the genus Inocybe. Inosperma was raised to genus rank and the species became Inosperma bongardii. It is a common species with a widespread distribution. Fruit bodies grow on the ground,

Inosperma adaequatum, known as Inocybe adaequata until 2019, is a species of fungus in the family Inocybaceae found in North America and Europe.

Hydnellum scabrosum, also called bitter tooth or bitter hedgehog, is a species of tooth fungus in the family Bankeraceae.

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Hydnellum fuligineoviolaceum is a species of tooth fungus in the family Bankeraceae. Found in northern Europe, it grows in association with coniferous trees, particularly Scots pine, and forms fruiting bodies that emerge from dry, chalky soils in mature forests. The species is classified by the IUCN as vulnerable due to habitat loss.

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Hydnellum underwoodii is an inedible species of tooth fungus in the family Bankeraceae. Found in North America, it was described as new to science in 1906 by American mycologist Howard James Banker. Its reddish-brown, convex to flattened cap measures 5–14 cm (2.0–5.5 in) in diameter. Reddish-brown, partially erect scales adorn the cap surface. Spines on the cap underside are 1–3 mm long; they are initially white, becoming brown with grayish tips in age. The oval to spherical spores are 6–7.5 by 5.5–6.5 μm. The fungus fruits singly or scattered, on the ground in coniferous forests.

Balsamia oregonensis is a species of ascomycete fungus in the family Helvellaceae. It is commonly found in Oregon, which it is named for.

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Inocybe calamistratoides is a species of Inocybaceae fungus found in New Zealand.

Inosperma is a genus of gilled mushroom in the family Inocybaceae. Previously defined as a subgenus within the large genus Inocybe by Robert Kühner in 1980, these fungi were found to be more distantly related in a 2019 multigene phylogenetic study by Matheny and colleagues.

Hydnellum versipelle is a species of tooth fungus in the family Bankeraceae. It was originally described by Elias Fries in 1861 as Hydnum versipelle. Taisiya Lvovna Nikolayeva transferred it to the genus Sarcodon in 1961. Hydnum crassum, published by Kenneth A. Harrison in 1961, is a synonym. The species is found in Europe and North America.

Pseudosperma is a genus of mushrooms in the family Inocybaceae. It is widely distributed, being found in both temperate and tropical regions. Pseudosperma was once considered to be part of the genus Inocybe. However, in 2020, Matheny et. al. split the genus into several other genera, including Pseudosperma.

Ourasphaira giraldae is an extinct process-bearing multicellular eukaryotic microorganism. Corentin Loron argues that it was an early fungus. It existed approximately a billion years ago during the time of the transition from the Mesoproterozoic to Neoproterozoic periods, and was unearthed in the Amundsen Basin in the Canadian Arctic, specifically from layers within the Grassy Bay Formation. This fungus may have existed on land well before plants.

The Mythicomycetaceae is a family of dark-spored agarics that have palely pigmented spores which lack germ pores. The two genera are monotypic and share features such as horn-like dark stems, pigmented mycelium at their bases, and are small brown mushrooms in north temperate forests. The family is closely related to the Psathyrellaceae.

Mycena subcyanocephala is a species of fungi, which has its habitat in the tropical parts of Taiwan. Mycena subcyanocephala is noted for its small size, with buttons about 1 mm tall. The species belongs to the Mycenaceae family, with Mycena interrupta being its closest known relative. Mycena subcyanocephala should not be regarded as edible. Neither substantial nor psychedelic, it could also embody the toxic chemical muscarine. Mycena subcyanocephala is a species of fungus that grows on wood in the tropical parts of Taiwan. It is currently the smallest known mushroom in the world, with caps

Lanmaoa pallidorosea, formerly known as Boletus pallidoroseus, is a fungus of the genus Lanmaoa native to North America. It was described scientifically by Ernst Both in 1998. It was transferred from Boletus to Lanmaoa in 2019.

Hydnellum lundellii is a species of tooth fungus in the family Bankeraceae, first described in 1969 and reclassified to its current genus in 2019. The fungus produces woody fruit bodies with caps ranging from yellowish-brown to purplish-brown that can grow up to 9 cm across, featuring tooth-like spines on their underside that release spores. It forms a mycorrhizal relationship with spruce trees. The species is found exclusively in Fennoscandia.

The Crassisporiaceae is a mushroom family of small brown, naucoroid, brown-spored agarics with thick to slightly thickened, smooth, basidiospore walls that darken to reddish brown in potassium hydroxide (KOH) solution, absence of chrysocystidia, presence of cheilocystidia, nongelatinized tissues in the lamellae, and a filamentous pileus cutis. The family is recognized based upon phylogenetic analyses using DNA sequences and depending upon the analyses varies in relationship to either the Cortinariaceae or, as described in greater detail prior to recognition as a separate family, near the

Wolseleyidea is a genus of lichen-forming fungi in the family Ramalinaceae. It consists of six species. The genus was established in 2019 based on DNA analysis that showed these species form a distinct evolutionary lineage separate from the related genus Phyllopsora. Species are characterised by thin, granular thalli with a distinctive reddish-brown prothallus border, small brown disc-shaped fruiting bodies, and a chemical profile that includes methyl 2,7-dichloropsoromate and related compounds. The genus is named in honour of the British lichenologist Pat Wolseley for her contributions to

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