Neolentinus is a genus of wood-decaying agarics with tough fruit bodies composed of dimitic tissue, serrated lamella edges, and nonamyloid white binucleate basidiospores among other features. It was segregated from Lentinus in the broad taxonomic sense, hence the derivation of the name. Biologically Neolentinus species produce a brown rot type of decay of wood, whereas Lentinus causes a white rot. Molecular phylogenetic analysis shows that the two genera are unrelated. Neolentinus is phylogenetically allied to other brown rot genera such as Gloeophyllum, Heliocybe, and Veluticeps. A new order, the Gloeophyllales, has been described for these fungi. Heliocybe had been placed in synonymy but it differs phylogenetically and anatomically by the lack of clamp connections that all Neolentinus produce on their generative hyphae.
The genus Stropharia is a group of medium to large agarics with a distinct membranous ring on the stipe. Well-known members of this genus include the edible Stropharia rugosoannulata and the blue-green verdigris agarics. Stropharia are not generally regarded as good to eat and there are doubts over the edibility of several species. However the species Stropharia rugosoannulata is regarded as prized and delicious when young, and is now the premier mushroom for outdoor bed culture by mycophiles in temperate climates.
Xerocomus is a genus of poroid fungi related to Boletus. Many mycologists did not originally recognize the distinction between the two genera and placed Xerocomus taxa in genus Boletus. However, several molecular phylogenetic studies have demonstrated that Xerocomus is a heterogeneous genus of polyphyletic origin, which has resulted in further division of Xerocomus into Xerocomellus and Hemileccinum. The members of the genus Xerocomellus are more closely related to Boletus than true Xerocomus is, which is relatively distantly related to Boletus and more closely related to Phylloporus. Other former Xerocomus species have since been moved to Aureoboletus, Imleria, Hortiboletus and Rheubarbariboletus.
Lichenomphalia is both a basidiolichen and an agaric genus. Most of the species have inconspicuous lichenized thalli that consist of scattered, small, loose, nearly microscopic green balls or foliose small flakes containing single-celled green algae in the genus Coccomyxa, all interconnected by a loose network of hyphae. The agaric fruit bodies themselves are nonlichenized and resemble other types of omphalinoid mushrooms. These agarics lack clamp connections and do not form hymenial cystidia. The basidiospores are hyaline, smooth, thin-walled, and nonamyloid. Most of the species were originally classified in the genera Omphalina or Gerronema. Historically the species were classified with those other genera in the family, the Tricholomataceae together with the nonlichenized species. Lichenomphalia species can be grouped into brightly colored taxa, with vivid yellow and orange colors, versus the grey brown group, depending upon the microscopic pigmentation deposits. Molecular research comparing DNA sequences now place Lichenomphalia close to the redefined genus Arrhenia, which together with several other genera not traditionally considered to be related, fall within the newly redefined Hygrophoraceae.
Pholiota is a genus of small to medium-sized, fleshy mushrooms in the family Strophariaceae. They are saprobes that typically live on wood. The genus has a widespread distribution, especially in temperate regions, and contains about 150 species.
Resinomycena is a genus of fungi in the mushroom family Mycenaceae. The genus contains at least eight species found in North America, Europe and eastern Asia. This genus of small white to tan colored agarics is saprophytic and colonizes leaf litter, bark, small twigs and decaying monocot vegetation. The fruitbodies are small and resemble Mycena or Marasmius or Hemimycena and are distinguished by amyloid spores, poorly dextrinoid tissues, and the abundant oily, resinous cystidia on the pileus, lamellae edges and stipes. One recently described species, Resinomycena fulgens from Japan that is a synonym of Resinomycena japonica, has luminescent fruitbodies.
Hemipholiota is a genus of agaric fungi in the order Agaricales. It was originally proposed by Rolf Singer in 1962 as a subgenus of Pholiota to contain species with absent or sparse pleurocystidia and absent chrysocystidia. Henri Romagnesi raised it to generic status in 1980, but this naming was invalid as it did not meet the requirements of the International Code of Nomenclature for algae, fungi, and plants. Marcel Bon published the genus validly in 1986.
Protostropharia semiglobata, commonly known as the dung roundhead, the halfglobe mushroom, or the hemispherical stropharia, is an agaric fungus of the family Strophariaceae. A common and widespread species with a cosmopolitan distribution, the fungus produces mushrooms on the dung of various wild and domesticated herbivores. The mushrooms have hemispherical straw yellow to buff-tan caps measuring 1–4 cm (0.4–1.6 in), greyish gills that become dark brown in age, and a slender, smooth stem 3–12 cm (1.2–4.7 in) long with a fragile ring.
Parasola auricoma is a species of agaric fungus in the family Psathyrellaceae. First described scientifically in 1886, the species is found in Europe, Japan, and North America. The mushroom was reported in February 2019 in Colombia, in the city of Bogota by the mycologist Juan Camilo Rodriguez Martinez. The small, umbrella-shaped fruit bodies (mushrooms) of the fungus grow in grass or woodchips and are short-lived, usually collapsing with age in a few hours. The caps are up to 6 cm (2.4 in) wide, initially elliptical before flattening out, and colored reddish-brown to greyish, depending on their age and hydration. They are pleated with radial grooves extending from the center to the edge of the cap. The slender, whitish stems are up to 12 cm (4.7 in) long and a few millimeters thick. Microscopically, P. auricoma is characterized by the presence of setae in its cap cuticle. This characteristic, in addition to the relatively large, ellipsoid spores can be used to distinguish it from other morphologically similar Parasola species.
Atheniella is an agaric fungal genus that produces mostly brightly colored mycenoid fruit bodies on small plant debris on forest floors, in fields and bogs. It is not a member of the Mycenaceae, and unlike most Mycenaceae, its basidiospores and tissues do not react with iodine. Atheniella species were most recently classified in Mycena because of their stature. However, they lack amyloid spores and tissues bewildering taxonomists, leading to temporary placements in Hemimycena and Marasmiellus before being phylogenetically excluded from both genera and the Mycenaceae. Most recently the genus has been classified in the Porotheleaceae. Currently 12 species are recognized.
Aphroditeola is an agaric fungal monotypic genus that produces pink cantharelloid fruit bodies on coniferous forest floors. The lamellae are forked and typically the fruit bodies have a fragrant odor described as candy-like, cinnamon-like or pink bubble gum-like.
Bogbodia is a bog-inhabiting agaric fungal genus that colonizes peat and Sphagnum and produces tan-colored fruit bodies. The only species in the genus is Bogbodia uda. Characteristically it forms chrysocystidia and rather large, finely roughened, violaceous basidiospores each with a poorly defined germ pore. The genus differs from Hypholoma which has smaller, smooth basidiospores and typically have cespitose fruit bodies and decay wood. Phylogenetically, Bogbodia is distinct from Hypholoma, Pholiota, and Leratiomyces.
Protostropharia alcis is a species of coprophilous agaric fungus in the family Strophariaceae. The fungus produces fruit bodies on moose, elk, and deer dung. The species has been recorded in Europe, Canada and Brazil.
Mycopan is one of several genera of agaric fungi (mushrooms) that were formerly classified in the genus Hydropus or Mycena. Mycopan is currently monotypic, containing the single species Mycopan scabripes. It produces dusky colored fruit bodies that are mycenoid, but lack amyloid or dextrinoid tissues except for the amyloid basidiospores. Its stipe is notably scruffy from cystidioid end cells and unlike true Hydropus it does not bleed clear fluid. Phylogenetically, Mycopan is distant from the Mycenaceae and the type of that family, Mycena, and it is not with the type of Hydropus, Hydropus fuliginarius. Mycopan grouped closest to Baeospora. Baeospora was shown to be in the Cyphellaceae by Matheny and colleagues. Mycopan scabripes grows from debris in forest floors in North America and Europe.
Phloeomana is a bark-inhabiting agaric fungal genus that produces fuscous-colored to whitish mycenoid to omphalinoid fruit bodies in temperate forests. In addition to the type species Phloeomana speirea, 4 other species, P. alba, P. clavata, P. hiemalis and P. minutula, have been placed in the genus. The genus is characterized by nonamyloid smooth, hyaline (translucent) basidiospores and tissues, poorly to moderately differentiated cheilocystidia, diverticulate pileipellis hyphae and general smooth stipe hyphae with scattered caulocystidia. It is one of several mushroom genera formerly classified most recently in Mycena, Omphalina, Hydropus, or Marasmiellus. Phylogenetically, Phloeomana is distant from the Mycenaceae and is closest to a clade or group that includes other former members of Mycena now in Atheniella and Hemimycena clearly excluded from the Mycenaceae and tentatively classified in the Porotheleaceae.
Phloeomana speirea, commonly known as the bark bonnet, is a species of fungus in the family Porotheleaceae. It is a bark-inhabiting agaric that produces fuscous-colored to whitish mycenoid to omphalinoid fruit bodies in temperate forests. The fungus was first described to science as Agaricus speireus by Elias Fries in 1815. Scott Redhead transferred it to the new genus Phloeomana in 2013, in which it is the type species.
Stagnicola is an agaric fungal genus that contains the single species Stagnicola perplexa. This fungus colonizes plant debris in wet coniferous forest floor depressions and shallow pools, and fruits after the pools drain or dry in late summer to early fall in North America and Europe. The genus is characterized by smooth, yellowish brown basidiospores lacking a germ pore, and a naucorioid appearance, with brownish mycelium at the base of the stems. Phylogenetically, Stagnicola appeared rather isolated and proved to be closest to Mythicomyces and Mythicomyces was closest to the Psathyrellaceae. In 2019 the two genera were shown to be closely related and placed in a new family, Mythicomycetaceae sister to the Psathyrellaceae.
Flammula is a dark brown-spored genus of mushrooms that cause a decay of trees, on whose bases they often fruit, forming clusters of yellowish brown mushrooms.
Sphagnurus is a parasitic mushroom genus in the family Lyophyllaceae that creates conspicuous dead patches on peat moss (Sphagnum) in bogs. The genus contains one species known to inhabit Eurasia and North America. Phylogenetically the genus is closest to, but is isolated from species now classified in the genus Sagaranella Prior to molecular analyses, the most recent classification put it in the genus Tephrocybe, but that genus is allied to Termitomyces.
Stropharia caerulea, commonly known as the blue roundhead, is a species of mushroom forming fungus in the family Strophariaceae. It is a somewhat common species found in Europe and North America, where it grows as a saprophyte in meadows, roadsides, hedgerows, gardens, and woodchip mulch. S. caerulea was officially described to science in 1979, although it was known to be a distinct species for about two centuries before that. The scientific name Stropharia cyanea, as defined by Tuomikoski in 1953, and used by several later authors, is a synonym of S. caerulea.
