Boletus subluridellus
Boletus subluridellus | |
---|---|
From Strouds Run State Park, Athens, Ohio | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Fungi |
Division: | Basidiomycota |
Class: | Agaricomycetes |
Order: | Boletales |
Family: | Boletaceae |
Genus: | Boletus |
Species: | B. subluridellus
|
Binomial name | |
Boletus subluridellus A.H.Sm. & Thiers (1971) |
Boletus subluridellus mycorrhizal | |
---|---|
Edibility is unknown |
Boletus subluridellus is a species of
Taxonomy
The species was described by American mycologists Alexander H. Smith and Harry D. Thiers in their 1971 monograph on the bolete fungi of Michigan.[1] The type collection was made by Smith on a golf course near Ypsilanti, Michigan in September 1961; it is kept at the University of Michigan herbarium.[2]
Boletus subluridellus is
The specific epithet subluridellus refers to its similarity to Boletus luridellus. Luridellus means "drab yellow to dirty brown".[4]
Description
Fruit bodies of Boletus subluridellus have convex caps that measure 5–10 cm (2–4 in) in diameter. The cap surface is dry and slightly sticky, with a somewhat velvety texture. Its color is reddish to reddish-brown to orange-red. The flesh is bright yellow before staining blue where it has been cut. It has no discernible odor, and a slightly metallic taste. On the cap underside, the tubes comprising the pore surface are 6–9 mm (0.24–0.35 in) long. Near to where the cap attaches to the stipe, they are either unattached, or slightly depressed. The dark reddish pores are small and round, numbering about 2–3 pores per mm. The stipe measures 4–9 cm (1.6–3.5 in) long by 1.5–2.3 cm (0.6–0.9 in) thick. It is solid (i.e., not hollow or stuffed with a pith), and roughly the same width throughout its length. The stipe color is pale yellow, grading to reddish in the base, where it has pressed-down yellow hairs. All parts of the fruit body (cap surface, flesh, pores, and stipe) will quickly stain blue when injured or touched.[1]
The
Similar species
Boletus roseolateritius, known from Mississippi, has a cap that changes color according to its age: it is initially dark reddish to orangish, later reddish brown at maturity, fading to brownish orange or brownish pink with dull yellow tints, and finally turning dull dingy yellow in age. Its pale yellow stipe lacks the reddish coloration and the hairs found on the base of B. subluridellus. Microscopically, it has smaller spores, measuring 8.5–12 by 3.5–4.5 μm.[6] Boletus rufocinnamomeus is also similar in appearance, but can be distinguished by its yellow stipe that is dotted with orange-cinnamon to brownish dots.[5] Boletus flammans, another blue-bruising lookalike found in the southeastern United States, grows under conifers. It has a reddish stipe with fine reticulations on its upper half.[7]
Habitat and distribution
Boletus subluridellus is a
See also
References
- ^ a b c Smith AH, Thiers HD (1971). The Boletes of Michigan. Ann Arbor, Michigan: University of Michigan Press. p. 349.
- ^ "Michigan; Washtenaw; USA; Boletus subluridellus; 1961-09-03; Smith A. H.; Holotype". University of Michigan Herbarium. Retrieved 2013-10-24.
- ^ Treu R. (1993). "Studies on Boletus section Luridi". Mycotaxon. 47: 367–77.
- ISBN 0-8131-9039-8.
- ^ ISBN 978-0-8156-0588-1.
- .
- ISBN 978-0-8156-3112-5.
- ISBN 978-2-7621-2617-4.
External links
- Media related to Boletus subluridellus at Wikimedia Commons
- Boletus subluridellus in Index Fungorum