Fungi named in 2000

The Boletaceae are a family of mushroom-forming fungi, primarily characterised by small pores on the spore-bearing hymenial surface (at the underside of the mushroom), instead of gills as are found in most agarics. Nearly as widely distributed as the agarics, the family is renowned for hosting some prime edible species highly sought after by mushroom hunters worldwide, such as the cep or king bolete (Boletus edulis). A number of rare or threatened species are also present in the family, that have become the focus of increasing conservation concerns. As a whole, the typical members of the

The Pluteaceae are a family of small to medium-sized mushrooms which have free gill attachment and pink spores. Members of Pluteaceae can be mistaken for members of Entolomataceae, but can be distinguished by the angled spores and attached gills of the Entolomataceae. The four genera in the Pluteaceae comprise the widely distributed Volvariella and Pluteus, the rare Chamaeota, and Volvopluteus, which was newly described in 2011 as a result of molecular analysis. The Dictionary of the Fungi (10th edition, 2008) estimates there are 364 species in the family.

Leucocoprinus barssii, commonly known as the smoky dapperling, or gray parasol, is a species of fungus in the family Agaricaceae.

Macropsalliota americana, commonly known as the American parasol, is the type species of the fungus genus Macropsalliota. It was formerly known as Leucoagaricus americanus. It is widely distributed in North America, mostly east of the Rocky Mountains. It is saprobic and grows on sawdust, wood chips, stumps, and the ground.

Erysiphe alphitoides is a species of powdery mildew in the family Erysiphaceae. It is found across the world on every continent bar Antarctica, where it primarily infects plants in the genus Quercus (oaks). It has also been recorded with varying degrees of likelihood on other plants, including Aesculus (horse chestnut), Castanea (sweet chestnut), Fagus (beech) and Wisteria.

Podosphaera fusca is a fungus that parasitically infects plants (a phytopathogen). It is the cause of powdery mildew in the genus Doronicum. P. fusca was formerly considered synonymous with Podosphaera xanthii, but due to, mainly, the smaller ascomata and smaller oculi than P. xanthii, it was deemed a separate species. While P. xanthii remains a large species complex (with P. xanthii s.s. on Xanthium), P. fusca is now very narrowly defined.

The Mycocaliciales are an order of ascomycetous fungi within the subclass Mycocaliciomycetidae and within the class Eurotiomycetes (subphylum Pezizomycotina).

Lulworthiales is a monotypic order of fungi in the class Sordariomycetes and also subclass Lulworthiomycetidae. The order Lulworthiales, with its sole family Lulworthiaceae, consists of strictly marine fungal genera found on a wide range of substrates such as seagrasses (including Posidonia oceanica), seaweeds, and seafoam. Order Lulworthiales was introduced on the basis of morphological characters and phylogenetic analyses built upon LSU and SSU partial sequences to accommodate the polyphyletic genera Lulworthia and Lindra. Members of this family (and order) are well-known cellulase

Rhizomarasmius is a genus of fungi in the family Physalacriaceae, containing about five species.

Podosphaera plantaginis is a species of powdery mildew in the family Erysiphaceae. It is found across the world, where it affects plantains (genus Plantago).

Podosphaera macularis (formerly Sphaerotheca macularis) is an ascomycete fungus that causes powdery mildew of hops. It is only known to be pathogenic on hop plants, including both ornamental and wild hops, and hemp.

Vankya ornithogali is a plant pathogen, also called yellow star-of-Bethlehem smut. It may infect the plant Gagea spathacea.

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Podosphaera fuliginea is a species of powdery mildew in the family Erysiphaceae. It is found in North America and Eurasia, where it affects plants in the genus Veronica.

Gymnopilus josserandii is a species of mushroom in the family Hymenogastraceae. It is a rare species, with instances documented in France, Switzerland and the Netherlands, with a noticeable lack of reports from the United Kingdom and Norway.

The Delitschiaceae are a family of fungi in the order Pleosporales. Taxa are widespread, especially in temperate regions, and are saprobic, often found growing in herbivore dung.

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Protopannaria pezizoides, the gray moss-shingle, is a species of squamulose lichen in the family Pannariaceae. It was first described scientifically by the German botanist Georg Heinrich Weber in 1778. It has a long and complex taxonomic history, and has an extensive synonymy. It was transferred to the genus Protopannaria by Per Magnus Jørgensen and Stefan Ekman in 2000; it was assigned as the type species of the genus. Protopannaria pezizoides is widespread, with a continental distribution that includes Africa, Asia, North America, and Oceania. The lichen thrives in moist and/or humid

Protopannaria is a genus of seven species of lichen-forming fungi in the family Pannariaceae. The genus was elevated from a subgenus of Pannaria to full genus status in 2000. Protopannaria lichens typically grow as small, overlapping patches on mossy tree trunks and branches in humid, old-growth forests. The genus is primarily distributed in subantarctic and temperate regions of the Southern Hemisphere.

Podosphaera aphanis is a species complex of powdery mildews in the family Erysiphaceae. It is found across the world, wherever the host plants are found. Podosphaera aphanis sensu stricto is only found on Alchemilla.

Peltigera hydrothyria, commonly known as the waterfan, is a relatively rare aquatic lichen in the family Peltigeraceae, native to North America. It grows in cold, clean mountain streams, where it attaches to rocks and bedrock in shaded, riparian habitats. First described in 1856 as Hydrothyria venosa, it was initially placed in its own genus due to its distinctive gelatinous thallus and aquatic lifestyle. Molecular studies later demonstrated its affinity with the genus Peltigera, leading to its reclassification in 2000. The lichen forms small, blackish rosettes with ruffled margins and

Peltigera chionophila is a species of foliose lichen in the family Peltigeraceae. It was first formally described in 2000 by Canadian lichenologist Trevor Goward and Belgian lichenologist Bernard Goffinet.

Leucocoprinus sericifer is a species of fungus in the family Agaricaceae.

Halorosellinia is a genus of fungi in the family Xylariaceae. This is a monotypic genus, containing the single species Halorosellinia oceanica.

Guanomyces is a genus of fungi within the family, Chaetomiaceae. This is a monotypic genus, containing the single species Guanomyces polythrix.

Ganoderma orbiforme – most commonly known as G. boninense or just Ganoderma in oil palm pathology – is a species of polypore fungus that is widespread across southeast Asia. It is a plant pathogen that causes basal stem rot, a disease of the African oil palm (Elaeis guineensis). The fungus was first described scientifically in 1838 by Elias Magnus Fries from collections made in Guinea. Leif Ryvarden transferred it to the genus Ganoderma in 2000. In addition to its type locality, the fungus has also been collected from the Bonin Islands in the Pacific, and from Venezuela and Puerto Rico.

Erysiphe flexuosa is a plant pathogen that causes powdery mildew on horse chestnut. It is native to North America but is currently spreading epidemically through Europe.

Byssomerulius psittacinus is a species of crust fungus in the family Irpicaceae. It was described as new to science in 2000 by mycologists Peter Buchanan, Leif Ryvarden, and Masana Izawa. The type was found in Fiordland National Park, where it was growing on the dead wood of Nothofagus. The specific epithet psittacinus ("parrot-like") refers to the wide range of colours observed in the fruit bodies. Initially a striking reddish-purple when fresh, it dries to brownish orange, pale orange yellow, or pale orange.

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