Xerocomus is a genus of fungi that is related to Boletus. Many mycologists do not recognize the distinction; however, several molecular studies have demonstrated that they are two distinct genera, with clear morphological differences. The genus Xerocomus has been further divided into Xerocomellus and Hemileccinum by Šutara (2008). 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 been moved to Aureoboletus, Imleria, Hortiboletus and Rheubarbariboletus.
Gastón Guzmán Huerta, a Mexican mycologist and anthropologist, was an authority on the genus Psilocybe.
Alexander Hanchett Smith was an American mycologist known for his extensive contributions to the taxonomy and phylogeny of the higher fungi, especially the agarics.
Phylloporus is a genus of fungi in the family Boletaceae. The genus has a cosmopolitan distribution, and contains about 50 species, mostly in tropical areas.
Bothia is a fungal genus in the family Boletaceae. A monotypic genus, it contains the single species Bothia castanella, a bolete mushroom first described scientifically in 1900 from collections made in New Jersey. Found in the eastern United States, Costa Rica, China, and Taiwan, it grows in a mycorrhizal association with oak trees. Its fruit body is chestnut brown, the cap is smooth and dry, and the underside of the cap has radially elongated tubes. The spore deposit is yellow-brown. The edibility of the mushroom is unknown. Historically, its unique combination of morphological features resulted in the transfer of B. castanella to six different Boletaceae genera. Molecular phylogenetic analysis, published in 2007, demonstrated that the species was genetically unique enough to warrant placement in its own genus.
Phylloporus rhodoxanthus, commonly known as the gilled bolete, is a species of fungus in the Boletaceae family. As suggested by its common name, the distinctive feature of this species is its yellow gills—an unusual feature on a bolete mushroom.
Suillus lakei, commonly known as the matte Jack, Lake's bolete, or the western painted Suillus, is a species of fungus in the Suillaceae family. 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 (5.9 in), while the stems are between 6 to 12 cm long and usually 1–3 cm (0.4–1.2 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 mycorrhizal fungus, S. lakei grows in association with Douglas fir, and can be found where this tree occurs. It is native to northwestern North America, but has been introduced to Europe, South America, and New Zealand. The mushroom is edible, but opinions vary considerably as to its quality.
Suillus sibiricus is a fungus of the genus Suillus in the Suillaceae family. It is found in mountains of Europe, North America, and Siberia, strictly associated with several species of pine tree. Due to its specific habitat and rarity in Europe, it has been selected for inclusion in several regional Red Lists. Its fruit bodies are characterised by having slimy caps in wet weather, which can reach diameters of up to 10 cm (3.9 in). On the underside of the cap are yellow angular pores that bruise a pinkish to cinnamon colour. The stem is up to 8 cm (3.1 in) tall and 2.5 cm (1.0 in) wide and typically has a ring, a remnant of the partial veil that covers the fruit body in its early development. In North America, it is commonly called the Siberian slippery jack. Phylogenetic analysis has shown that S. sibiricus is closely related to S. umbonatus and S. americanus, and may in fact be conspecific with the latter species.
Suillus ochraceoroseus is an edible species of mushroom in the genus Suillus.
Phylloporus arenicola is a species of bolete mushroom in the family Boletaceae. It is found in the Pacific Northwest region of western North America, where it grows in sand dunes in a mycorrhizal association with pine trees. It is one of only three North American Boletaceae species that occur in coastal sand dunes.
Boletinellus merulioides, commonly known as the ash-tree bolete, is a species of bolete fungus in the family Boletinellaceae. Described as new to science in 1832, it is found in Asia and eastern North America, where it grows on the ground near ash trees.
Phylloporus leucomycelinus is a species of bolete fungus in the Boletaceae family. First described in 1978, it is found in eastern North America and the Philippines.
Suillus appendiculatus is a species of bolete fungus in the family Suillaceae. It was first described scientifically in 1896 as a species of Boletinus by American mycologist Charles Horton Peck. Harry D. Thiers and Alexander H. Smith transferred it to the genus Suillus in 1964.
Suillus subaureus is a species of bolete fungus in the family Suillaceae. It is found in North America, where it associates with deciduous trees. Originally described in 1887 by Charles Horton Peck, it was transferred to genus Suillus by Wally Snell in 1944. Fruitbodies are pale yellow—reflecting its specific epithet subaureus, which means "somewhat golden yellow". The spore print is olive brown. Spores are smooth and inamyloid, and measure 7–10 by 2.7–3.5 µm. Ithas also been recorded in Taiwan.
Rheubarbariboletus is a fungal genus in the family Boletaceae. Circumscribed in 2014, it contains two species found in Europe: Rheubarbariboletus persicolor, and the type, R. armeniacus. The generic name is derived from the Latin rheubarbarum, meaning "rhubarb", referring to the color of the flesh at the base of the stipe. The genus is closely related to Xerocomellus, but differs by having smooth spores, the unchanging yellowish to orange-rhubarb coloring of the stipe base, and the distinctive dark-green to black color reaction with iron sulphate on both the surface of the cap and on the flesh of the stipe.
Rheubarbariboletus persicolor is a species of bolete fungus. It was originally described in 1996 as Xerocomus persicolor, based on collections made in Italy. The bolete was found in mixed woodland with hop-hornbeam, pine, and oak.
