| Tylopilus williamsii | |
|---|---|
 | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Basidiomycota |
| Class: | Agaricomycetes |
| Order: | Boletales |
| Family: | Boletaceae |
| Genus: | Tylopilus |
| Species: | T. williamsii |
| Binomial name | |
| Tylopilus williamsii Singer & J.García (1991) | |
Tylopilus williamsii is a bolete fungus in the family Boletaceae found in Mexico, where it grows under oak. It was described as new to science in 1991. [1]
Tylopilus is a genus of over 100 species of mycorrhizal bolete fungi separated from Boletus. Its best known member is the bitter bolete, the only species found in Europe. More species are found in North America, such as the edible species T. alboater. Australia is another continent where many species are found. All members of the genus form mycorrhizal relationships with trees. Members of the genus are distinguished by their pinkish pore surfaces.
Tylopilus felleus, commonly known as the bitter bolete or the bitter tylopilus, is a fungus of the bolete family. Its distribution includes east Asia, Europe and eastern North America, extending south into Mexico and Central America. A mycorrhizal species, it grows in deciduous and coniferous woodland, often fruiting under beech and oak. Its fruit bodies have convex to flat caps that are some shade of brown, buff or tan and typically measure up to 15 cm (6 in) in diameter. The pore surface is initially white before turning pinkish with age. Like most boletes it lacks a ring and it may be distinguished from Boletus edulis and other similar species by its unusual pink pores and the prominent dark-brown net-like pattern on its stalk.
Tylopilus plumbeoviolaceus, commonly known as the violet-grey bolete, is a fungus of the bolete family. First described in 1936, the mushroom has a disjunct distribution, and is distributed in eastern North America and Korea. The fruit bodies of the fungus are violet when young, but fade into a chocolate brown color when mature. They are solid and relatively large—cap diameter up to 15 cm (5.9 in), with a white pore surface that later turns pink, and a white mycelium at the base of the stem. The mushroom is inedible. A number of natural products have been identified from the fruit bodies, including unique chemical derivatives of ergosterol, a fungal sterol.
Tylopilus tabacinus is a species of bolete fungus in the family Boletaceae. It is characterized by a tawny-brown cap measuring up to 17.5 cm (6.9 in) in diameter, and a reticulated stem up to 16.5 cm (6.5 in) long by 6 cm (2.4 in) thick. A characteristic microscopic feature is the distinctive crystalline substance encrusted on the hyphae in the surface of the cap. The species is known from the eastern United States from Florida north to Rhode Island, and west to Mississippi, and from eastern Mexico. It is a mycorrhizal species, and associates with oak and beech trees.
Tylopilus alboater, called the black velvet bolete, by some, is a bolete fungus in the family Boletaceae. The species is found in North America east of the Rocky Mountains, and in eastern Asia, including China, Japan, Taiwan, and Thailand. A mycorrhizal species, it grows solitarily, scattered, or in groups on the ground usually under deciduous trees, particularly oak, although it has been recorded from deciduous, coniferous, and mixed forests.
Tylopilus rubrobrunneus, commonly known as the reddish brown bitter bolete, is a bolete fungus in the family Boletaceae. It was first described scientifically in 1967 by Samuel J. Mazzer and Alexander H. Smith from collections made in Michigan. It is found in the United States; the bolete was reported from a Mexican beech forest in Hidalgo, Mexico in 2010.
Harrya chromapes, commonly known as the yellowfoot bolete or the chrome-footed bolete, is a species of bolete fungus in the family Boletaceae. The bolete is found in eastern North America, Costa Rica, and eastern Asia, where it grows on the ground, in a mycorrhizal association with deciduous and coniferous trees. Fruit bodies have smooth, rose-pink caps that are initially convex before flattening out. The pores on the cap undersurface are white, aging to a pale pink as the spores mature. The thick stipe has fine pink or reddish dots (scabers), and is white to pinkish but with a bright yellow base. The mushrooms are edible but are popular with insects, and so they are often infested with maggots.
Tylopilus brachypus is a bolete fungus in the family Boletaceae found in Durango, Mexico, where it grows under pine and oak in montane forests. It was described as new to science in 1991.
Tylopilus corneri is a bolete fungus in the family Boletaceae found in Costa Rica, where it grows under oak in montane forest. Described as new to science in 1991, it is named after English mycologist E.J.H. Corner.
Tylopilus costaricensis is a bolete fungus in the family Boletaceae found in Costa Rica, where it grows under oak in montane forest. It was described as new to science in 1991.
Tylopilus gomezii is a bolete fungus in the family Boletaceae found in Costa Rica, where it grows under oak in montane woodland. It was described as new to science in 1991 by mycologist Rolf Singer.
Tylopilus jalapensis is a bolete fungus in the family Boletaceae found in Veracruz, Mexico, where it grows under oak in montane forests. It was described as new to science in 1991.
Tylopilus mitissimus is a bolete fungus in the family Boletaceae found in Costa Rica, where it grows under oak in montane woodland. It was described as new to science in 1991.
Tylopilus montoyae is a bolete fungus in the family Boletaceae found in Veracruz, Mexico, where it grows in mesophilous montane forest. It was described as new to science in 1991.
Tylopilus subcellulosus is a bolete fungus in the family Boletaceae found in Tamaulipas, Mexico, where it grows under oak. It was described as new to science in 1991.
Tylopilus subniger is a bolete fungus in the family Boletaceae found in Costa Rica, where it grows under oak in montane woodland. It was described as new to science in 1991.
Tylopilus vinaceogriseus is a bolete fungus in the family Boletaceae found in Costa Rica, where it grows under oak in montane forest. It was described as new to science in 1991.
Tylopilus bulbosus is a bolete fungus of the genus Tylopilus. Described as new to science in 2001 by mycologists Roy Halling and Greg Mueller, it is found in Costa Rica, where it grows on the ground in montane forests dominated by the oak species Quercus copeyensis, Q. oocarpa, and Q. seemannii. The fungus produces fruit bodies with convex to flattened caps measuring 4.5–11 cm (1.8–4.3 in) in diameter. Its color is initially violet to purplish brown, and eventually fades to brown. The pore surface is initially pale pinkish purple to grayish red, and bruises brown where it has been handled. The white flesh stains pinkish brown where it has been exposed. Spores are more or less spindle shaped (subfusoid), smooth, and measure 10–14 by 4.2–5.6 µm; the fresh spore deposit is pinkish. Morphologically similar Tylopilus species include the eastern North American T. rubrobrunneus and the North and Central American T. williamsii.
Sutorius eximius, commonly known as the lilac-brown bolete, is a species of fungus in the family Boletaceae. This bolete produces fruit bodies that are dark purple to chocolate brown in color with a smooth cap, a finely scaly stipe, and a reddish-brown spore print. The tiny pores on the cap underside are chocolate to violet brown. It is widely distributed, having been recorded on North America, South America, and Asia, where it grows in a mycorrhizal relationship with both coniferous and deciduous trees.
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