Fungi named in 1951

Flammulina velutipes, the velvet foot, velvet stem, velvet shank or wild enoki, is a species of gilled mushroom in the family Physalacriaceae. The species occurs in Europe and North America.

Volvariella volvacea (also known as paddy straw mushroom or straw mushroom) is a species of edible mushroom cultivated throughout East and Southeast Asia and used extensively in Asian cuisine. They are often available fresh in regions where they are cultivated, but elsewhere are more frequently found canned or dried. Worldwide, straw mushrooms are the third-most-consumed mushroom.

The Cortinariaceae are a large family of gilled mushrooms found worldwide, containing over 3200 species. The family takes its name from its largest genus, the varied species of the genus Cortinarius. Many genera formerly in the Cortinariaceae have been placed in various other families, including Hymenogastraceae, Inocybaceae and Bolbitiaceae. The deadly toxin orellanine has been found in at least 34 Cortinariaceae.

Volvariella bombycina, commonly known as the silky volvariella, tree silksheath, silky sheath, silky rosegill, silver-silk straw mushroom, or tree mushroom, is a species of fungus in the family Pluteaceae. The fruit body (mushroom) begins developing in a thin, egg-like sac. This ruptures and the stem expands quickly, leaving the sac at the base of the stem as a volva. The cap, which can attain a diameter of up to 20 centimetres (8 inches), is white to slightly yellowish and covered with silky hairs. On the underside of the cap are closely spaced gills, free from attachment to the stem, and

Amanita crocea, the saffron ringless amanita, is a species of Amanita widely distributed in Europe. It is edible but not recommended for consumption due to its similarity to poisonous species of the genus.

Macrolepiota mastoidea is a species of mushroom producing fungus in the family Agaricaceae.

Lyophyllum decastes is a species of fungus in the family Lyophyllaceae. It is known as the clustered domecap in the United Kingdom and the fried chicken mushroom in North America. The basidiocarps (fruit bodies) are agaricoid (gilled mushrooms). It forms large clusters on the ground. Considered edible, it is cultivated in Asia.

Collybia sordida, formerly Lepista sordida, is a species of blewit mushroom found across the Northern Hemisphere. It is known to form fairy rings.

Volvariella surrecta, commonly known as the piggyback rosegill, is an agaric fungus in the family Pluteaceae. V. surrecta mushrooms have white or greyish silky-hairy caps up to 8 cm (3.1 in) in diameter, and white gills that turns pink in maturity. The stipe, also white, is up to 9 cm (3.5 in) long, and has a sack-like volva at its base. Although rare, the species is widely distributed, having been reported from Eurasia, northern Africa, North America, and New Zealand. The fungus grows as a parasite on the fruit bodies of other gilled mushrooms, usually Clitocybe nebularis.

Agaricus urinascens (the macro mushroom) is a species of fungus in the family Agaricaceae. The mushroom grows up to 30 centimetres (12 in) wide and 12 cm (4+3⁄4 in) tall. The cap is whitish, domed then becoming convex in age. The gills are whitish, then darken to pink or brownish with age. The flesh is white with an almond scent. It can be found in pastures of Europe from June to September. It is edible when cooked and can be dried for preservation.

Asterophora parasitica, commonly known as the parasitic Asterophora or the Russula parasite, is a species of fungus that grows as a parasite on other mushrooms. The fruit bodies are small, with silky fibers on the surface of grayish caps and thick, widely spaced gills. Mushrooms fruit in clusters on the decaying remains of Lactarius and Russula species, particularly those in the Russula nigricans group. Found primarily in temperate zones of Europe and North America, the fungus is widespread but not common.

Pholiota gummosa, commonly known as the sticky scalycap, is a common species of mushroom-forming fungus in the family Strophariaceae. It is found in Europe and North America, where it grows as a saprotroph on the rotting wood of deciduous trees, including trunks and roots. It can also grow on wood buried near the surface, making it seem as if it is fruiting in grass.

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Lepista glaucocana is a species of fungus belonging to the family Tricholomataceae. It is native to Europe and Northern America.

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Agaricus benesii is an agaric mushroom of the genus Agaricus known in English as the mull mushroom. This mushroom can be distinguished by a white cap that bruises pinkish-red when injured, a scaly lower stipe, and a conifer habitat. Similar to Agaricus californicus and A. xanthodermus, the cap discolors brown in age. A distinguishing feature of A. californicus and A. xanthodermus, however, is a thickened annulus at the margin, a phenolic odor, and a yellowing bruise, instead of red. In the case of Agaricus xanthodermus, it occurs quickly, though faintly to not at all in the case of A.

Psathyrella spadicea or Homophron spadiceum, commonly known as the chestnut brittlestem, is a species of agaric fungus in the family Psathyrellaceae.

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Gerronema is a genus of over 50 fungi species that form agaric fruit bodies. They are of small to medium size, with a centrally depressed cap. They are similar to Omphalina species. A wood-decay fungus, Gerronema has a primarily tropical distribution, occurring in Europe and eastern North America.

Agaricus impudicus, also known as the tufted wood mushroom, is a mushroom of Agaricus, a genus with many edible species.

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The Phelloriniaceae are a family of fungi in the order Agaricales. The family contains two monotypic genera, Dictyocephalos and Phellorinia. The family was circumscribed by the German botanist Oskar Eberhard Ulbrich in 1951.

Melanophyllum eyrei, commonly known as the greenspored dapperling is an uncommon species of fungus belonging to the family Agaricaceae. It is native to Europe and Britain in deciduous woodland with scrub on calcareous soil. The cap can be up to 3 cm (1.2 in) in diameter, hemispherical, becoming flat with an appendiculate margin. Dingy white, sometimes with a brownish centre; surface granular or powdery. The gills are bluish green with a pale green spore print; free. The stipe is up to 3 cm (1.2 in) long, slender and similar in colour and texture to the cap. No ring.

Lepista luscina is a species of fungus belonging to the family Tricholomataceae. It has cosmopolitan distribution.

Agaricus brunneofibrillosus, commonly known as the dusky mushroom or bleeding agaricus, is a species of fungus in the family Agaricaceae. It has a medium to dark brown cap up to 6 cm (2+1⁄4 in) in diameter with brownish fibrillose scales that darken in age. The tightly packed gills are initially cream colored before becoming pinkish, lilac-gray, and finally brownish as the spores mature. The stout stem is enlarged to bulbous at the base, which has one or more brown bands, and a white, membranous ring.

Pleurotus tuber-regium, the king tuber mushroom, is an edible gilled fungus native to the tropics, including Africa, Asia, and Australasia. It has been shown to be a distinct species incapable of cross-breeding and phylogenetically removed from other species of Pleurotus. Pleurotus tuber-regium is a saprotroph found on dead wood, including Daniellia trees in Africa. As the fungus consumes the wood, it produces a sclerotium, or storage tuber, either within the decaying wood or in the underlying soil. These sclerotia are round, dark brown with white interiors, and up to 30 cm wide. The fruiting

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Leucocoprinus badhamii is a species of fungus in the family Agaricaceae and genus Leucocoprinus. The flesh of this mushroom turns blood red when cut or bruised, hence its common name of blushing dapperling. These damaged areas may eventually turn brown or black and likewise the mushroom may discolour brown or black with age. All parts of the flesh display red staining aiding in identification.

Hygrocybe quieta is a species of agaric (gilled mushroom) in the family Hygrophoraceae. It has been given the recommended English name of oily waxcap in the UK. The species has a European distribution and typically occurs in grassland where it produces basidiocarps (fruit bodies) in the autumn. Threats to its habitat have resulted in the species being assessed as globally "vulnerable" on the IUCN Red List of Threatened Species.

Gymnopilus aeruginosus, also known as the magic blue gym, is a mushroom-forming fungus. It has a rusty orange spore print and a bitter taste. Growing in clusters on dead wood, it is widely distributed and common in the Pacific Northwest. It contains the psychedelic chemical psilocybin.