''Aureoboletus innixus'' is a species of
bolete fungus in the family
Boletaceae. Found in eastern North America, it was first
described scientifically by
Charles Christopher Frost
Charles Christopher Frost (November 11, 1805 – March 16, 1880) was an American mycologist. He described several species of fungi from the New England area of the United States. In one paper, Frost described 22 new species of boletes, and he wa ...
in 1874, from collections made 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 ...
.
An
edible mushroom
Edible mushrooms are the fleshy and edible fruit bodies of several species of macrofungi (fungi which bear fruiting structures that are large enough to be seen with the naked eye). They can appear either below ground (hypogeous) or above ground ...
, the convex
cap grows to wide and is dull reddish brown to yellow brown. The
stem
Stem or STEM may refer to:
Plant structures
* Plant stem, a plant's aboveground axis, made of vascular tissue, off which leaves and flowers hang
* Stipe (botany), a stalk to support some other structure
* Stipe (mycology), the stem of a mushro ...
is long by thick, but often swollen at the apex with a tapered base. It has a bright yellow pore surface when young that dulls in color when mature. There are about 1 to 3 pores per mm when young, but they expand as they mature to about 2 mm wide. The
spore print is olive-brown, and the
spores are ellipsoid, smooth, and measure 8–11 by 3–5
um.
The mushroom is often confused with the similar ''
Aureoboletus auriporus'', which has a pinkish cinnamon to dark reddish brown cap.
See also
*
List of North American boletes
References
External links
*
innixus
Edible fungi
Fungi described in 1874
Fungi of North America
Fungus species
{{Boletales-stub