''Boletus nobilissimus'' is an
edible
An edible item is any item that is safe for humans to eat. "Edible" is differentiated from "eatable" because it does not indicate how an item tastes, only whether it is fit to be eaten. Nonpoisonous items found in nature – such as some mushroo ...
basidiomycete
Basidiomycota () is one of two large divisions that, together with the Ascomycota, constitute the subkingdom Dikarya (often referred to as the "higher fungi") within the kingdom Fungi. Members are known as basidiomycetes. More specifically, Basi ...
mushroom, of the genus ''
Boletus
''Boletus'' is a genus of mushroom-producing fungi, comprising over 100 species. The genus ''Boletus'' was originally broadly defined and described by Carl Linnaeus in 1753, essentially containing all fungi with hymenial pores instead of gil ...
'' in the family ''
Boletaceae
The Boletaceae are a family of mushroom-forming fungi, primarily characterised by small pores on the spore-bearing hymenial surface (at the underside of the mushroom), instead of gills as are found in most agarics. Nearly as widely distributed ...
''. Long considered a variety of European ''
Boletus edulis
''Boletus edulis'' (English: cep, penny bun, porcino or porcini) is a basidiomycete fungus, and the type species of the genus ''Boletus''. Widely distributed in the Northern Hemisphere across Europe, Asia, and North America, it does not occu ...
'', it has become a species on its own in 2000, with 2010 molecular study finding that it is most closely related to ''
B. atkinsonii'', ''
B. quercophilus'' of Costa Rica and then ''
B. barrowsii'' of western United States.
It is found in abundance in open oak forests after heavy rains and warm weather (30°C or more).
Morphology
;
Cap
A cap is a flat headgear, usually with a visor. Caps have crowns that fit very close to the head. They made their first appearance as early as 3200 BC. Caps typically have a visor, or no brim at all. They are popular in casual and informal se ...
The cap is 9.5 to 15 cm in diameter, initially convex in shape, before becoming broadly convex to plane as it ages; The surface is dry with small hair, yellow brown to vinaceous brown, and then dark brown. The thick flesh is white and does not turn blue when bruised.
;
Pores
The pores are white when young, becoming yellowish or brownish yellow to greenish olivacous, unchanged when bruised.
;
Stipe
From 8 to 12 cm long; 1-3 cm thick, dry, solid; whitish or brownish; club shaped to bulbous with strongly raised reticulation.
;
Spore print
300px, Making a spore print of the mushroom ''Volvariella volvacea'' shown in composite: (photo lower half) mushroom cap laid on white and dark paper; (photo upper half) cap removed after 24 hours showing pinkish-tan spore print. A 3.5-centimeter ...
The spore print is yellowish-brown.
;
Spore
In biology, a spore is a unit of sexual or asexual reproduction that may be adapted for dispersal and for survival, often for extended periods of time, in unfavourable conditions. Spores form part of the life cycles of many plants, algae, f ...
s
Ellipsoid to subfusiform, smooth, pale yellow, 11.5-13.5 x 4-5 µm.
Habitat and distribution
Forms mycorrhiza with hardwoods, especially oak and beech in presence of pines; single, scattered, or gregarious, in summer and fall; collected in
New England
New England is a region comprising six states in the Northeastern United States: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont. It is bordered by the state of New York to the west and by the Canadian provinces ...
,
New York
New York most commonly refers to:
* New York City, the most populous city in the United States, located in the state of New York
* New York (state), a state in the northeastern United States
New York may also refer to:
Film and television
* '' ...
,
and other Eastern parts of United States,
with distribution limits unknown.
References
External links
*
{{Taxonbar, from=Q2909354
Edible fungi
nobilissimus
''Nobilissimus'' (Latin for "most noble"), in Byzantine Greek ''nōbelissimos'' (Greek: νωβελίσσιμος),. was one of the highest imperial titles in the late Roman and Byzantine empires. The feminine form of the title was ''nobilissima' ...
Fungi described in 2000
Fungi of North America