Fungi named in 1904

Calvatia gigantea, commonly known in English as the giant puffball, is a puffball mushroom found in meadows, fields, and deciduous forests in late summer and autumn. It is found in temperate areas throughout the world. It is edible when young.

Amanita regalis, commonly known as the royal fly agaric or the king of Sweden Amanita, is a species of fungus in the family Amanitaceae. A. regalis has a scabby liver-brown cap and a stem which is yellow-ochre at the base, with patches or rings of patches. The fruit bodies somewhat resemble the smaller A. muscaria (fly agaric), which it was formerly regarded as a variety of. A. regalis is common in Scandinavia and also found in eastern and northern Europe. Its North American distribution is restricted to Alaska. Like A. muscaria, it is poisonous and contains the psychoactive compound

Laetiporus is a genus of edible mushrooms found throughout much of the world. Some species, especially Laetiporus sulphureus, are commonly known as sulphur shelf, chicken of the woods, the chicken mushroom, or the chicken fungus because it is often described as tasting like and having a texture similar to that of chicken.

Pichia (Hansenula and Hyphopichia are obsolete synonyms) is a genus of yeasts in the family Pichiaceae with spherical, elliptical, or oblong acuminate cells. Pichia is a teleomorph, and forms hat-shaped, hemispherical, or round ascospores during sexual reproduction. The anamorphs of some Pichia species are Candida species. The asexual reproduction is by multilateral budding. The genus name of Pichia is in honour of Pico Pichi (1862–1933), who was an Italian botanist and Professor of natural history and plant pathology at a viticulture school in the town of Conegliano in the Province of

Trichaptum is a genus of poroid fungi. The genus was circumscribed by American mycologist William Alphonso Murrill in 1904. Formerly classified in the family Polyporaceae, several molecular studies have shown that the genus belongs to the order Hymenochaetales.

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Mycena arcangeliana (commonly known as the angel's bonnet or the late-season bonnet) is a species of Mycenaceae fungus. It has been known by a number of scientific names, and its taxonomy is still somewhat disputed. It produces small mushrooms with caps varying in colour from whitish to a darker grey-brown, and stems of an olive-greyish that fade with age. The mushrooms can be mistaken for the similar Mycena flavescens. They have a mild taste, but a strong smell of iodoform; they are not edible. The species grows on dead wood in autumn months, and can be found throughout Europe.

Abortiporus is a genus of fungi in the family Meruliaceae. The widely distributed genus contains three species. Species in the genus grow on the wood of hardwoods and conifers, either alone or around the stumps and living trees. It causes a white rot in dead wood and a white trunk rot in living wood. The genus was circumscribed in 1904 by William Alphonso Murrill. The generic name is derived from the Latin abortus (arrested development of any organ) and the Ancient Greek πόρος (pore).

Stromatinia is a genus of fungi in the family Sclerotiniaceae.

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Calvatia sculpta, commonly known as the sculpted puffball, the sculptured puffball, the pyramid puffball, or Sierran puffball, is a species of puffball fungus in the family Agaricaceae. Attaining dimensions of up to 8 to 15 cm (3 to 6 in) tall by 8 to 10 cm (3 to 4 in) wide, the pear- or egg-shaped puffball is readily recognizable because of the large pyramidal or polygonal warts covering its surface. The spores are roughly spherical and have wart-like projections on their surfaces. It may be easily confused with Calbovista subsculpta, a similar puffball that—in addition to differences

Phylloporia is a genus of polypore fungi in the family Hymenochaetaceae. A 2012 estimate placed 23 species in the genus; this number was increased to 30 by 2015.

Geastrum corollinum is an inedible species of mushroom belonging to the genus Geastrum, or earthstar fungi. First described scientifically by German naturalist August Johann Georg Karl Batsch in 1792 as Lycoperdon corollinum, it was transferred to the genus Geastrum by László Hollós in 1904.

Penicillium purpurogenum is a plant pathogen infecting strawberries. It produces rubratoxin B, a mycotoxin with anticarcinogenic properties, as well as monascus pigments.

The Englerulaceae are a family of fungi with an uncertain taxonomic placement in the class Dothideomycetes. The genre names of Englerula and Englerulella are in honour of Heinrich Gustav Adolf Engler (1844 – 1930), who was a German botanist. He is notable for his work on plant taxonomy and phytogeography.

Torulaspora is a genus of ascomycetous yeasts in the family Saccharomycetaceae.

Pichia membranifaciens is a species of yeast.

Penicillium rubrum is a species of fungus in the genus Penicillium which produces kojic acid, mitorubrin, mitorubrinol, rubratoxin A, rubratoxin B rubralactone, rubramin and occurs in grain corn and soybeans. Penicillium rubrum is similar to the species Penicillium chrysogenum.

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Coltricia is a genus of fungi in the family Hymenochaetaceae. It was circumscribed by Samuel Frederick Gray in 1821. In 2022, it was combined with the genus Coltriciella.

Wynnella auricula is a species of fungus in the family Helvellaceae, and the type species of genus Wynnella. It was first described in 1763 by German mycologist Jacob Christian Schäffer as Peziza auricula. Jean Louis Émile Boudier transferred it to Wynnella in 1885.

Saccharomycodes ludwigii is a yeast species best known for being a contaminant in alcohol and fruit juice production. It is highly resistant to typical environmental stressors such as high temperature, high sugar concentration, and high sulfur dioxide concentration. It is often referred to as the "winemaker's nightmare," as it contaminates products by outcompeting desirable yeast species. However, S. ludwigii strains are currently being tested in the growing low-alcohol beer industry.

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Peltigera lepidophora, commonly known as the scaly pelt, is a species of foliose lichen in the family Peltigeraceae. It was first described by Finnish lichenologist Edvard August Vainio in 1878 as a variety of Peltigera canina. German botanist Friedrich August Georg Bitter promoted it to species status in 1904. The lichen has a pale to dark brown thallus comprising rounded and concave lobes that measure 5–10 mm (0.2–0.4 in) across. The upper surface is covered with isidia, while the lower surface has pale, indistinct veins and unbranched rhizines. It grows on exposed soil, such as roadsides

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