Fungi named in 2003

Infundibulicybe geotropa, also known as the trooping funnel or monk's head, is a large funnel-shaped mushroom with a sturdy cream or buff colour. It grows widely in Europe and (less commonly) in North America in mixed woodlands, often in troops or fairy rings, one of which is over half a mile wide. Although edible, it could be confused with some poisonous species of similar colouration and size.

Leccinellum griseum is a common, edible mushroom in the bolete family. It is found below hornbeam, usually in small groups. Young mushrooms with firm flesh are very palatable.

Infundibulicybe gibba (also known as Clitocybe gibba), and commonly known as the common funnel or funnel cap, is a species of gilled mushroom which is common in European woods.

Conocybe apala is a basidiomycete fungus belonging to the genus Conocybe. The species has been taxonomically reclassified a number of times. Until recently, it was also commonly called Conocybe lactea or Conocybe albipes and is colloquially known as the white dunce cap or the milky conecap. It is a fairly common fungus, both in North America and Europe, found growing among short green grass.

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Leccinellum lepidum is a species of bolete in the family Boletaceae. Originally described as Boletus lepidus in 1965, the fungus has gone through controversial taxonomic treatments over the years and was subsequently transferred to genus Krombholziella in 1985, to genus Leccinum in 1990, and to genus Leccinellum in 2003. It is the sister-species of Leccinellum corsicum, with which it had been erroneously synonymised by some authors in the past. Like other species of Boletaceae, it has tubes and pores instead of gills in its hymenial (fertile) surface and produces large, fleshy fruit bodies up

Infundibulicybe is a genus of fungi that is robustly placed incertae sedis as sister group to the Tricholomatoid clade. It has previously been part of the family of Tricholomataceae, but recent molecular phylogeny has shown it to take an isolated position within the Agaricales.

Leccinellum is a genus of fungi in the family Boletaceae. Mycologists Andreas Bresinsky and Manfred Binder circumscribed the genus in 2003 to contain Leccinum species with a yellow pore surface and a trichoderm-like cap cuticle. Leccinellum nigrescens (originally Leccinum nigrescens Singer 1947) was designated the type species; this taxon has since been renamed to Leccinellum crocipodium (Letell.) Della Maggiora & Trassinelli. The oak-associating Leccinellum quercophilum was described from the United States in 2013.

Leccinellum corsicum is a species of bolete fungus in the family Boletaceae. It grows in mycorrhizal symbiosis exclusively with rockroses (Cistus species) in Mediterranean Europe and North Africa. The fungus was originally described as new to science in 1896 by French mycologist Léon Louis Rolland as a species of Boletus. Andreas Bresinsky and Manfred Binder transferred it to the newly circumscribed genus Leccinellum in 2003. The bolete is edible, and is especially appreciated in Portugal.

The Classiculomycetes are a class of fungi in the Pucciniomycotina subdivision of the Basidiomycota. The class contains a single order, the Classiculales, which in turn contains the single family Classiculaceae. The family contains two monotypic genera. They belong to a morpholigical group called "aquatic hyphomycetes" which are fungi that grow on submerged decaying plant matter, but they are also found as mycoparasites and endophytes. This is only an informal descriptive group which is divided phylogenetically between asco types (the great majority) and basidio types (a small percentage of

Cantharellus cascadensis, commonly known as the cascade chanterelle or hybrid chanterelle, is a fungus native to the Pacific Northwest region of North America. It is considered a choice edible mushroom.

Agrocybe rivulosa (wrinkled fieldcap) is a species of mushroom in the genus Agrocybe. The first recorded sighting of the mushroom was in 2003. The species was first found in Britain in the year 2004. It is a relatively large mushroom, with a stem of 5 to 10 centimeters, and a cap which reaches 4 to 10 centimeters across. The colour of the cap ranges from yellow to pale orange-brown. It has been eaten, and is reasonably tasty with no obvious toxicity.

Kazachstania exigua is a yeast species that commonly occurs in olive brine and in some kefir cultures. It is one of the yeast species used in the production of sourdough. It is acid-tolerant and maltose-negative.

Tribulatia is a genus of fungi in the family Phyllachoraceae. This is a monotypic genus, containing the single species Tribulatia appendicospora. The genus name of Tribulatia is in honour of Louis Charles Trabut (1853–1929), who was a French botanist and physician. He is remembered for his work involving the flora of Algeria and Tunisia.

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Punctelia graminicola is a species of foliose (leafy) lichen in the family Parmeliaceae. It grows on rocks, and, less frequently, on bark in North America, South America, and East Africa. It has a blue-grey thallus measuring up to about 15 cm (6 in), covered with tiny pores called pseudocyphellae. Sometimes the lichen forms small lobes that project out from the surface. Fruiting bodies are uncommon in this species; if present, they resemble small cups with a brown internal disc measuring 3–10 mm (0.1–0.4 in) in diameter. A lookalike species, Punctelia hypoleucites, is not readily

Mycovellosiella concors is a fungal plant pathogen infecting potatoes.

Tapesia yallundae is the causal agent for a variety of cereal and forage grass diseases. The anamorph of T. yallundae is the W-type strain of Pseudocercosporella herpotrichoides. The R-type strain of Pseudocercosporella herpotrichoides is now known as Tapesia acuformis.

Leccinellum albellum is a species of bolete fungus in the family Boletaceae.

Hjortstamia is a genus of corticioid fungi in the family Phanerochaetaceae. It was circumscribed by French mycologists Jacques Boidin and Gérard Gilles in 2003. The genus name of Hjortstamia is in honour of Kurt Hjortstam (1933 - 2009), who was a Swedish mycologist from the University of Gothenburg. Miettinen and colleagues consider Hjortstamia to be a synonym of Phlebiopsis based on molecular phylogenetics.

Cladonia incerta is a species of fruticose lichen in the family Cladoniaceae. Found in New Zealand, it was formally described as a new species in 2003 by the lichenologist Samuel Hammer. He collected the type specimen near the Dome Forest walkway north of Warkworth. The species epithet incertain refers to the uncertain ontogeny (development) of the podetia, which take various forms. The primary thallus of Cladonia incerta is squamulose (scaly) and can be either persistent or evanescent. The squamules are elongated, somewhat incised, and can be sorediate or esorediate, and erect. The podetia

Cladonia fuscofunda is a species of fruticose lichen in the family Cladoniaceae. Found in New Zealand, it was formally described as a new species in 2003 by the lichenologist Samuel Hammer. He collected the type specimen from the Awarua Wetland in Southland, where it was growing on soil under Leptospermum shrubs. The primary thallus of Cladonia fuscofunda is squamulose (scaly) and evanescent. The podetia are common, brown or glaucous, scyphose or subulate, rarely swollen, esorediate at the base, and either esorediate or sorediate at the tip with farinose (floury) soredia. The apothecia

Cladonia darwinii is a species of fruticose lichen in the family Cladoniaceae. Found in Australia and New Zealand, it was formally described as a new species in 2003 by the lichenologist Samuel Hammer. He collected the type specimen from the vicinity of the Mavora Lakes in Southland, at an elevation of 620 m (2,030 ft). The species epithet is named after Charles Darwin to honour his foundational work on evolutionary theory and the significance of variation in evolution, a concept that remains challenging in the study of Cladonia lichens. The primary thallus of Cladonia darwinii is squamulose,

Auricularia americana is a species of fungus in the family Auriculariaceae found in North America and East Asia. Its basidiocarps (fruitbodies) are gelatinous, ear-like, and grow on dead conifer wood.

Albatrellus citrinus is an uncommon, lemon-yellow mushroom-forming fungus species in the family Albatrellaceae, first described in 2003. Initially confused with the North American species Albatrellus subrubescens, this European fungus was distinguished through careful examination of its physical characteristics and DNA analysis. The mushroom forms fleshy, stool-like or bracket-shaped structures with caps measuring 5–15 centimetres across that start pale cream and develop yellow-orange hues with age, featuring small round pores on their undersides and mild-tasting white flesh that yellows when

Zygotorulaspora florentina (formerly Zygosaccharomyces florentinus) is a plant pathogen. It was first described (as Zygosaccharomyces florentinus) in 1960 and transferred to Zygotorulaspora in 2003, initially under the incorrectly formed specific epithet florentinis.

Vanderwaltozyma polyspora is a species of multi-spored yeast fungus in the family Saccharomycetaceae found in soil, first described by Johannes P. van der Walt, and moved to a new genus by Cletus P. Kurtzman in 2003 (together with Vanderwaltozyma yarrowii).

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Sebacina sparassoidea, the white coral jelly fungus, is a species of fungus in the family Sebacinaceae. Its coral-like basidiocarps (fruit bodies) are typically a yellowish off-white and have a gelatinous and elastic texture. Found in eastern North America, in humid environments amongst rotting logs of deciduous trees, particularly oaks, it is often observed growing throughout the months of August to September.