Taxon Details: Boletus russellii Frost
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Family:

Boletaceae (Basidiomycota)
Scientific Name:

Boletus russellii Frost
Primary Citation:

Catalogue of boleti of New England, with description of new species.
Bull. Buffalo Soc. Nat. Sci. 2: 104. 1874
Description:

Protologue: Pileus pulvinate if expanded, otherwise thick hemispherical, fasciculate red pilose on a yellow ground, 2 to 4 inches broad. Tubes dirty yellow or yellowish green, rther large, nearly adnate, often depressed around the stem. Stem very long 3 to 6 inches in most specimens, small at apex, increasing downwards, red, rough with the margins of a sharp network of alveolate depressions and in some measure from the breaking up of the epidermis. Flesh yellowish, unchanging. Spores .0147–.0084 m.m. In rocky woods. July.

Registration number: MB #201725

Ectomycorrhiza: Quercus

Distribution: Eastern USA, southward to Andean Colombia. Reported from Japan, but images of that taxon illustrate a smooth, brownish gray to gray pileus.