Boletus fibrillosus, commonly known as the fib king,[2] is a basidiomycete fungus of the genus Boletus found in western North America. The fruiting bodies are found in mixed coastal forests in the fall, usually singly or in small groups.[3] The cap is up to 17 cm wide, buff to brown to dark brown in color, and has 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 yellowish at the top, brown otherwise, with a reticulate texture,[1][4] and mycelium enshrouding the bottom.[3] The holotype was collected in Mendocino County, California.[1][4] The species is edible, but considered to have inferior taste to other edible boletes such as B. edulis, which it is often confused with.[5]
| Boletus fibrillosus | |
|---|---|
| |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Basidiomycota |
| Class: | Agaricomycetes |
| Order: | Boletales |
| Family: | Boletaceae |
| Genus: | Boletus |
| Species: | B. fibrillosus
|
| Binomial name | |
| Boletus fibrillosus | |
Boletus fibrillosus | |
|---|---|
 | Pores on hymenium |
 | Cap is convex |
 | Hymenium is adnexed |
 | Stipe is bare |
 | Spore print is olive-brown |
 | Ecology is mycorrhizal |
 | Edibility is edible |
Phylogenetic analysis has shown B. fibrillosus as a member of a clade, or closely related group, with B. pinophilus, B. regineus, B. rex-veris, B. subcaerulescens, and Gastroboletus subalpinus.[6]
See also
editReferences
edit- ^ a b c Thiers, Harry D. (1975). California Mushrooms: A Field Guide to the Boletes. New York, NY: Hafner Press. p. 45.
- ^ Initiative, The Global Fungal Red List. "Boletus fibrillosus". redlist.info. Retrieved 2024-02-04.
- ^ a b Trudell, Steve; Ammirati, Joe (2009). Mushrooms of the Pacific Northwest. Timber Press Field Guides. Portland, OR: Timber Press. p. 217. ISBN 978-0-88192-935-5.
- ^ a b Bessette, Alan; Roody, William C.; Bessette, Arleen Rainis (2000). North American boletes: a color guide to the fleshy pored mushrooms. Syracuse University Press. pp. 110–111. ISBN 978-0-8156-0588-1.
- ^ Trudell, Steve; Ammirati, Joe (2009). Mushrooms of the Pacific Northwest. Portland, Oregon: Timber Press. p. 217. ISBN 978-0-88192-935-5.
- ^ Dentinger, Bryn T.M.; et al. (2010). "Molecular phylogenetics of porcini mushrooms (Boletus section Boletus)" (PDF). Molecular Phylogenetics and Evolution. 57 (3): 1276–1292. doi:10.1016/j.ympev.2010.10.004. PMID 20970511. Archived from the original (PDF) on 2013-05-23.
External links
edit
Media related to Boletus fibrillosus at Wikimedia Commons- Boletus fibrillosus in Index Fungorum
- Boletus fibrillosus in MycoBank.
 | This Boletales-related article is a stub. You can help Wikipedia by expanding it. |