Harry D. Thiers

American mycologist (1919-2000).

Harry Delbert Thiers (January 22, 1919, in Fort McKavett, Texas – August 8, 2000, in Ohio) was an American mycologist who studied and named many fungi native to North America, particularly California. Thiers taught mycology at San Francisco State University. He comprehensively revised and expanded on the North American collection of boletes and named many new species. Species authored by Thiers include the boletes Suillellus amygdalinus, Boletus barrowsii, Xerocomellus dryophilus, Rubroboletus pulcherrimus, Leccinum manzanitae, and other mushrooms including Gymnopilus luteoviridis and Russula

Abbreviations: Thiers

Occupations: scientific collector, mycologist, botanist, botanical collector

Citizenships: United States

Dates: 1919-01-22T00:00:00Z – 2000-08-08T00:00:00Z

Birth place: Fort McKavett

Direct attributions: 0 plants, 201 fungi

Authorship mentions: 0 plants, 249 fungi

Links:Wikipedia IPNI VIAF

201 fungi attributed, 48 fungi contributed to249 fungi:

Suillus cavipes (Hollow Bolete) (Klotzsch) A.H. Sm. & Thiers 1964

edible fungi species in the suillaceae family

Suillus cavipes, commonly known as the hollow foot is a species of mushroom in the genus Suillus. The epithet cavipes (Latin: 'hollow foot') refers to the hollow stem. The brownish cap is up to 12 centimetres (4+3⁄4 in) wide, dry, fibrillose, sometimes with veil remnants on the edge. The pores are buff and usually decurrent. The stipe is up to 9 cm long and 2 cm thick, yellowish above, sometimes with a slight ring, and cap-colored below. The flesh is whitish and firm. It is found in Europe and North America. It is associated with larch in the Pacific Northwest. It is edible.

Suillus lakei (Western Painted Suillus) (Murrill) A.H. Sm. & Thiers 1964

edible fungi species in the suillaceae family

Suillus lakei, commonly known as the matte Jack, Lake's bolete, or the western painted Suillus, is a species of fungus in the family Suillaceae. It is characterized by the distinctive reddish-brown tufted fibers or small scales on the cap, and the presence of a woolly veil on the stem. The caps can reach diameters of up to 15 cm (6 in), while the stems are between 6 and 12 cm (2+1⁄4 and 4+3⁄4 in) long and usually 1–3 cm (1⁄2–1+1⁄4 in) thick. On the underside of the cap is a layer of spongy yellow to yellow-brown angular pores; these pores are covered with a whitish partial veil when young. A

Suillus pungens (Pungent Slippery Jack) Thiers & A.H. Sm. 1964

edible fungi species in the suillaceae family

Suillus pungens, commonly known as the pungent slippery jack or the pungent suillus, is a species of fungus in the genus Suillus. The fruit bodies of the fungus have slimy convex caps up to 14 cm (5+1⁄2 in) wide. The mushroom is characterized by the very distinct color changes that occur in the cap throughout development. Typically, the young cap is whitish, later becoming grayish-olive to reddish-brown or a mottled combination of these colors. The mushroom has a dotted stipe up to 7 cm (2+3⁄4 in) long and 2 cm (3⁄4 in) thick. On the underside on the cap is the spore-bearing tissue,

Boletus barrowsii (Barrow's Bolete) Thiers & A.H. Sm. 1976

fungi species in the boletaceae family

Boletus barrowsii, also known in English as the white king bolete after its pale colored cap, is a species of fungus in the genus Boletus. It was formerly considered a color variant of B. edulis. It can be found under ponderosa pine and live oak in western North America during autumn. It is edible and highly regarded.

Omphalotus olivascens (Western Jack-o'-lantern Mushroom) H.E. Bigelow, O.K. Mill. & Thiers 1976

fungi species in the omphalotaceae family

Omphalotus olivascens, commonly known as the western jack-o'-lantern mushroom, is an orange to brown-colored gilled poisonous mushroom endemic to the North American west coast. It has several lookalikes including Cantharellus cibarius.

Leccinum atrostipitatum A.H. Sm., Thiers & Watling 1966

fungi species in the boletaceae family

Leccinum versipelle, also known as Boletus testaceoscaber, dark-stalked bolete, or orange birch bolete, is a common species of mushroom that may be edible when given the right preparation. It is found below birches from July through to November, and turns black when cooked.

Boletus subluridellus A.H. Sm. & Thiers 1971

fungi species in the boletaceae family

Boletus subluridellus is a species of bolete fungus in the family Boletaceae. Described as new to science in 1971 by American mycologists, the bolete is found in the eastern United States and Canada. It grows on the ground in coniferous and mixed forests in a mycorrhizal association with deciduous trees, especially oak. The fruit bodies (mushrooms) have orangish-red, broadly convex caps that are up to 10 cm (3.9 in) in diameter, with small, dark reddish pores on the underside. The pale yellow stipe measures 4–9 cm (1.6–3.5 in) long by 1.5–2.3 cm (0.6–0.9 in) thick. All parts of the fruit body

Amanita magniverrucata (Great Pine Jewel) Thiers & Ammirati 1982

fungi species in the amanitaceae family

Amanita magniverrucata, commonly known as the pine cone amanita, or great pine jewel, is a species of agaric mushroom in the family Amanitaceae.

Suillus caerulescens (Blue-staining Suillus) A.H. Sm. & Thiers 1964

fungi species in the suillaceae family

Suillus caerulescens, commonly known as the douglas-fir suillus and fat jack, is a species of bolete fungus in the family Suillaceae.

Leccinum manzanitae (Manzanita Bolete) Thiers 1971

fungi species in the boletaceae family

Leccinum manzanitae is a species of bolete fungus in the family Boletaceae. Described as new to science in 1971, it is commonly known as the manzanita bolete for its usual mycorrhizal association with manzanita trees. Its fruit bodies (mushrooms) have sticky reddish to brown caps up to 20 cm (8 in), and its stipes are up to 16 cm (6.3 in) long and 3.5 cm (1.4 in) thick. They have a whitish background color punctuated with small black scales known as scabers. L. manzanitae can be usually distinguished from other similar bolete mushrooms by its large size, reddish cap, dark scabers on a whitish

Gastroleccinum Thiers 1989

fungi genus in the boletaceae family

Gastroleccinum is a fungal genus in the family Boletaceae. It is a monotypic genus, represented by the single species Gastroleccinum scabrosum. The genus was circumscribed by Harry Delbert Thiers in 1989.

Gastroboletus amyloideus Thiers 1969

fungi species in the boletaceae family

Gastroboletus amyloideus is a species of fungus in the family Boletaceae. The species was first described scientifically in 1969 by American mycologist Harry Delbert Thiers. Characterized by its amyloid spore staining reaction, the fungus is found in California.

Boletus rubroflammeus A.H. Sm. & Thiers 1971

fungi species in the boletaceae family

Boletus rubroflammeus is a species of bolete fungus in the family Boletaceae. First described from Michigan in 1971, it is found in the eastern United States and Mexico, where it grows in a mycorrhizal association with hardwood trees. The fruit bodies (mushrooms) of the fungus have caps that are deep red to purplish red, and dark red pores. The stem has coarse, dark red reticulations (raised, net-like ridges) and a narrow yellow area at the top. All parts of the mushroom quickly stain blue when injured or cut. Lookalikes include Boletus flammans, a lighter-colored species that grows with

Suillus acerbus A.H. Sm. & Thiers 1964

fungi species in the suillaceae family

Suillus acerbus is a species of bolete fungus in the family Suillaceae. It was first described scientifically by American mycologists Alexander H. Smith and Harry D. Thiers in 1964.

Gastroleccinum scabrosum (Mazzer & A.H. Sm.) Thiers 1989

fungi species in the boletaceae family

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Gastroboletus xerocomoides Trappe & Thiers 1969

fungi species in the boletaceae family

Gastroboletus xerocomoides is a species of fungus in the family Boletaceae. The species was first described scientifically in 1969 by American mycologists Harry Delbert Thiers and James Trappe. It is found in California, usually near Red Fir trees (Abies magnifica).

Boletus fibrillosus (Fib King) Thiers 1975

fungi species in the boletaceae family

Boletus fibrillosus, commonly known as the fib king, is a basidiomycete fungus of the genus Boletus. The holotype was collected in Mendocino County, California. Phylogenetic analysis has shown it to be a member of a clade (closely related group) with B. pinophilus, B. regineus, B. rex-veris, B. subcaerulescens, and Gastroboletus subalpinus. The cap is up to 17 centimetres (6+1⁄2 in) wide and buff to brown to dark brown, with a wrinkled to finely fibrous texture. The tubes are yellow, while the flesh is white to buff and does not stain when cut. The stem is up to 16 cm long, yellowish at the

Amanita breckonii (Breckon's False-ring Amanita) Thiers & Ammirati 1982

fungi species in the amanitaceae family

Amanita breckonii is a species of agaric fungus in the genus Amanita. It is known from California and Washington, where it associates with Monterey pine, ponderosa pine, and spruce. The species was described as new to science in 1982 by mycologists Harry Delbert Thiers and Joseph Ammirati. The holotype specimen was collected in 1966 on the campus of San Francisco State University by then graduate student Gary Breckon, for whom the species is named.

Tylopilus intermedius (Bitter Parchment Bolete) A.H. Sm. & Thiers 1971

fungi species in the boletaceae family

Tylopilus intermedius, commonly known as the bitter parchment bolete, is a bolete fungus in the family Boletaceae native to the eastern United States.

Tylopilus humilis (Humble Bolete) Thiers 1967

fungi species in the boletaceae family

Tylopilus humilis, commonly known as the humble bolete, is a species of bolete fungus in the family Boletaceae. It was first described scientifically in 1967 by Harry Delbert Thiers from collections made in Mendocino, California. The brown cap is 4–12 centimetres (1+1⁄2–4+1⁄2 in) wide. The flesh is white, brusing pinkish, and has a mild taste. The tubes are whitish then become pinkish, staining brown. The stalk is up to 5 cm long, whitish above and brownish below. The spore print is reddish-brown. The mushroom often remains partially underground until reaching maturity. The species is known

Tylopilus badiceps (Beveled-cap Bolete) (Peck) A.H. Sm. & Thiers 1971

fungi species in the boletaceae family

Tylopilus badiceps is a bolete fungus in the family Boletaceae native to North America. It was described in 1900 as Boletus badiceps by Charles Horton Peck, and transferred to the genus Tylopilus in 1971 by Alexander H. Smith and Harry Delbert Thiers. It is a good edible mushroom.

Suillus glandulosipes Thiers & A.H. Sm. 1964

edible fungi species in the suillaceae family

Suillus glandulosipes is a species of edible mushroom in the genus Suillus. It was first described scientifically by American mycologists Harry D. Thiers and Alexander H. Smith in 1964.

Suillus fuscotomentosus (Poor Man's Slippery Jack) Thiers & A.H. Sm. 1964

fungi species in the suillaceae family

Suillus fuscotomentosus, commonly known as the poor man's slippery jack, is a species of fungus in the genus Suillus. Found in western North America, it was described as new to science in 1964 by mycologists Harry Delbert Thiers and Alexander H. Smith. The cap is up to 15 centimetres (6 in) wide, with dark fibrils on a buff background. The flesh is orangish and does not turn blue when bruised. The pores are yellowish. The stem is up to 12 cm long and 3 cm thick. The spore print is brownish. It usually grows under three-needle pines, such as ponderosa and Monterey pine. Although edible, it is

Leccinum rotundifoliae (Singer) A.H. Sm., Thiers & Watling 1967

fungi species in the boletaceae family

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Leccinum insolens A.H. Sm., Thiers & Watling 1968

fungi species in the boletaceae family

Leccinum insolens is a species of bolete fungus in the family Boletaceae. It was described as new to science in 1968 by mycologists Alexander H. Smith, Harry D. Thiers, and Roy Watling. The variety brunneomaculatum was also described by these authors.

Leccinum insigne (Aspen Bolete) A.H. Sm., Thiers & Watling 1966

fungi species in the boletaceae family

Leccinum insigne, commonly known as the aspen bolete or the aspen scaber stalk, is a species of bolete fungus in the family Boletaceae. It was described as new to science in 1966. The specific epithet insigne means "distinctive or outstanding". The cap is up to 17 centimetres (6+3⁄4 in) wide, orangish-brown, and semi-fibrillose. The tubes are white to yellowish, staining brownish (not blue). The stipe is up to 15 cm long and white with dark scabers. The flesh is white, sometimes turning gray, and possibly bluish in the base. The spore print is tannish. The species is found in North America,

Gastroboletus citrinobrunneus Thiers 1979

fungi species in the boletaceae family

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Gastroboletus brunneus Thiers 1989

fungi species in the boletaceae family

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Boletus vermiculosoides A.H. Sm. & Thiers 1971

fungi species in the boletaceae family

Boletus vermiculosoides is a North American species of bolete fungus in the family Boletaceae.

Amanita constricta (Constricted Grisette) Thiers & Ammirati 1982

fungi species in the amanitaceae family

Amanita constricta, commonly known as the constricted grisette or great grey-sack ringless amanita is a species of mushroom-forming fungus in the family Amanitaceae.

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