Boletus nobilis, the noble bolete, is a species of edible basidiomycete mushroom of the genus Boletus found in eastern United States. Morphologically close to Boletus edulis, it is distinguished by an elongated stem, a beige skin and white pores, even when old.
| Boletus nobilis | |
|---|---|
| |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Basidiomycota |
| Class: | Agaricomycetes |
| Order: | Boletales |
| Family: | Boletaceae |
| Genus: | Boletus |
| Species: | B. nobilis
|
| Binomial name | |
| Boletus nobilis (Peck 1910)
| |
Boletus nobilis | |
|---|---|
 | Pores on hymenium |
 | Cap is convex |
 | Hymenium is adnate |
 | Stipe is bare |
 | Spore print is brown |
 | Ecology is mycorrhizal |
 | Edibility is edible |
Taxonomy
editThe species was described as Boletus nobilis by Peck in 1910.[1] For many years Boletus nobilis was considered a subspecies or form of Boletus edulis. Phylogenetic analysis has shown that Boletus nobilis is a separate species and a member of a clade closely related to Boletus separans.[2]
Morphology
editBasidiocarp: as with other boletes, the size of the fruitbody is variable, but it does not reach the prominence of Boletus edulis. Flesh is "thin even in very large specimens"
Hymenium: pores white, even when old, without the "greenish tint" of B. edulis. Pores not depressed around the stipe.
Pileus:7-20cm wide, convex becoming plane with age, dry, with a yellowish to reddish brown skin, lighter in the center of the cap, becoming lighter with age to pale ochraceous.
Stipe: the stipe is elongated, sometimes bulbous, and its general color white, sometimes "with a lilaceous tinge". It is finely reticulated below the hymenium, the reticulation being shallow.
Spore print: dull ochre brown to dull rusty brown.[3][4]
Distribution and habitat
editBoletus nobilis is found under oak and beech trees on the East Coast of the United States: Appalachia, Pennsylvania, Ohio from summer to fall.[3][5]
Edibility
editBoletus nobilis is edible, but not as desirable as the lookalike boletes.[3] It can be preserved and cooked or frozen.
See also
editReferences
edit- ^ Saccardo's Syll.fung.XIX:169; XXI : 235 (1910)
- ^ Dentinger, Bryn T. M.; Ammirati, Joseph F.; Both, Ernst E.; Desjardin, Dennis E.; Halling, Roy E.; Henkel, Terry W.; Moreau, Pierre-Arthur; Nagasawa, Eiji; Soytong, Kasem; Taylor, Andy F.; Watling, Roy; Moncalvo, Jean-Marc; McLaughlin, David J. (1 December 2010). "Molecular phylogenetics of porcini mushrooms (Boletus section Boletus)". Molecular Phylogenetics and Evolution. 57 (3): 1276–1292. doi:10.1016/j.ympev.2010.10.004. ISSN 1055-7903. PMID 20970511.
- ^ a b c Bessette, Alan E.; Roody, William C.; Bessette, Arleen R. (3 January 2017). Boletes of Eastern North America. Syracuse University Press. pp. 121–122. ISBN 978-0-8156-5394-3.
- ^ Snell, Walter H. (July 1934). "Notes on Boletes. III". Mycologia. 26 (4): 356. doi:10.1080/00275514.1934.12020729. ISSN 0027-5514.
- ^ "Boletus nobilis Peck". www.gbif.org. Retrieved 26 April 2023.