Aureoboletus betula
| Aureoboletus betula | |
|---|---|
| |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Basidiomycota |
| Class: | Agaricomycetes |
| Order: | Boletales |
| Family: | Boletaceae |
| Genus: | Aureoboletus |
| Species: | A. betula
|
| Binomial name | |
| Aureoboletus betula | |
| Synonyms | |
|
Boletus betula Schwein. (1822) | |
Aureoboletus betula | |
|---|---|
 | Pores on hymenium |
 | Cap is convex |
 | Hymenium is adnate |
 | Stipe is bare |
 | Spore print is olive |
 | Ecology is mycorrhizal |
 | Edibility is edible |
Aureoboletus betula is a species of mushroom producing fungus in the family Boletaceae.[1] It is commonly known as the shaggy-stalked bolete.[2]
Taxonomy
[edit]It was first described in 1822 by the German-American mycologist Lewis David de Schweinitz and classified as Boletus betula.[3] It has been reclassified many times over the years. In 2004, the Austrian mycologist Egon Horak's classified it as Heimioporus betula.[4][5] In 2020, it was reclassified as Aureoboletus betula by the mycologists Michael Kuo and Beatriz Ortiz-Santana.[6]
Etymology
[edit]The specific epithet 'betula', meaning birch, does not an imply a preference for growing under birch trees but to their shaggy bark, which the stipe of this species is reminiscent of.[7]
Description
[edit]The cap is 2–5 centimetres (3⁄4–2 in) wide, convex and broadening with age.[2] It starts golden yellow, discolouring to brownish yellow or reddish orange. The texture is sticky and the flesh is yellow.[8] There are 1–2 pores every millimetre with tubes that are 1.5 cm deep. They are bright yellow, turning greenish yellow with age.[8]
The stem is 8–15 cm (3+1⁄4–6 in) tall and 1–2 cm thick.[2] It is distinctly textured with deep ridges and a slightly swollen and rooting base. The stem flesh is white, staining pink when exposed to air.[8] The taste and smell are indistinct.[8]
The spores are ellipsoid, measuring 16–24 x 7–12 μm. The spore print is olive.[8]
Similar species
[edit]Outside of its genus, it resembles Butyriboletus frostii, which is relatively more red and squat.[2]
Distribution and habitat
[edit]It is found under oaks, or in mixed woods of pine and oak, primarily in the southern Appalachians, from July to September.[2]
Edibility
[edit]This species is edible.[9][10]
References
[edit]- ^ "Species Fungorum - Aureoboletus betula (Schwein.) M. Kuo & B. Ortiz, Mycologia 112(1): 205 (2020)". www.speciesfungorum.org. Retrieved 2022-07-15.
- ^ a b c d e Audubon (2023). Mushrooms of North America. Knopf. p. 318. ISBN 978-0-593-31998-7.
- ^ "Species Fungorum - Boletus betula Schwein., Schr. naturf. Ges. Leipzig 1: 94 [68 of repr.] (1822)". www.speciesfungorum.org. Retrieved 2022-07-16.
- ^ Horak, E. (1999). "New Genera of Agaricales (Basidiomycota). 1. Rapacea gen. nov". Kew Bulletin. 54 (3): 789–794. doi:10.2307/4110877. ISSN 0075-5974. JSTOR 4110877.
- ^ "Heimioporus E. Horak gen. nov. - replacing HeimiellaBoedijn (1951, syn. post., Boletales, Basidiomycota)" (PDF).
- ^ Kuo, Michael; Ortiz-Santana, Beatriz (2020-01-02). "Revision of leccinoid fungi, with emphasis on North American taxa, based on molecular and morphological data". Mycologia. 112 (1): 197–211. doi:10.1080/00275514.2019.1685351. ISSN 0027-5514. PMID 31900053. S2CID 209751453.
- ^ "Alabama Mushroom Society - Aureoboletus". alabamamushroomsociety.org. Retrieved 2022-07-16.
- ^ a b c d e Kuo, M. (2020). "Aureoboletus betula". MushroomExpert.Com. Retrieved 2022-07-16.
- ^ Miller Jr., Orson K.; Miller, Hope H. (2006). North American Mushrooms: A Field Guide to Edible and Inedible Fungi. Guilford, CN: FalconGuides. p. 390. ISBN 978-0-7627-3109-1.
- ^ "Boletellus betula ("Shaggy Stalked Bolete")". The Bolete Filter. 2015-07-23. Retrieved 2022-07-16.
